Malfunction of implantation shunts, valves, etc., and prosthesis loosening, migration, and breaking.
The plan and delineation of prostheses in general or a specific prosthesis.
Artificial substitutes for body parts, and materials inserted into tissue for functional, cosmetic, or therapeutic purposes. Prostheses can be functional, as in the case of artificial arms and legs, or cosmetic, as in the case of an artificial eye. Implants, all surgically inserted or grafted into the body, tend to be used therapeutically. IMPLANTS, EXPERIMENTAL is available for those used experimentally.
Prostheses used to partially or totally replace a human or animal joint. (from UMDNS, 1999)
Replacement for a knee joint.
Replacement for a hip joint.
Rigid, semi-rigid, or inflatable cylindric hydraulic devices, with either combined or separate reservoir and pumping systems, implanted for the surgical treatment of organic ERECTILE DYSFUNCTION.
A device that substitutes for a heart valve. It may be composed of biological material (BIOPROSTHESIS) and/or synthetic material.
A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.
Prosthetic replacements for arms, legs, and parts thereof.
Artificial device such as an externally-worn camera attached to a stimulator on the RETINA, OPTIC NERVE, or VISUAL CORTEX, intended to restore or amplify vision.
Surgical insertion of a prosthesis.
The fitting and adjusting of artificial parts of the body. (From Stedman's, 26th ed)
Medical devices which substitute for a nervous system function by electrically stimulating the nerves directly and monitoring the response to the electrical stimulation.
An implant used to replace one or more of the ear ossicles. They are usually made of plastic, Gelfoam, ceramic, or stainless steel.
An artificial replacement for one or more natural teeth or part of a tooth, or associated structures, ranging from a portion of a tooth to a complete denture. The dental prosthesis is used for cosmetic or functional reasons, or both. DENTURES and specific types of dentures are also available. (From Boucher's Clinical Dental Terminology, 4th ed, p244 & Jablonski, Dictionary of Dentistry, 1992, p643)
A prosthesis that gains its support, stability, and retention from a substructure that is implanted under the soft tissues of the basal seat of the device and is in contact with bone. (From Boucher's Clinical Dental Terminology, 4th ed)
Surgical insertion of synthetic material to repair injured or diseased heart valves.
A measure of the quality of health care by assessment of unsuccessful results of management and procedures used in combating disease, in individual cases or series.
Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels.
'Amputee' is a medical term used to describe an individual who has undergone the surgical removal of a limb or extremity, such as an arm, leg, foot, or hand, due to various reasons like trauma, disease, or congenital defects.
A prosthetic appliance for the replacement of areas of the maxilla, mandible, and face, missing as a result of deformity, disease, injury, or surgery. When the prosthesis replaces portions of the mandible only, it is referred to as MANDIBULAR PROSTHESIS.
A device, activated electronically or by expired pulmonary air, which simulates laryngeal activity and enables a laryngectomized person to speak. Examples of the pneumatic mechanical device are the Tokyo and Van Hunen artificial larynges. Electronic devices include the Western Electric electrolarynx, Tait oral vibrator, Cooper-Rand electrolarynx and the Ticchioni pipe.
Partial or total replacement of a joint.
A ready-made or custom-made prosthesis of glass or plastic shaped and colored to resemble the anterior portion of a normal eye and used for cosmetic reasons. It is attached to the anterior portion of an orbital implant (ORBITAL IMPLANTS) which is placed in the socket of an enucleated or eviscerated eye. (From Dorland, 28th ed)
Surgical insertion of cylindric hydraulic devices for the treatment of organic ERECTILE DYSFUNCTION.
Infections resulting from the implantation of prosthetic devices. The infections may be acquired from intraoperative contamination (early) or hematogenously acquired from other sites (late).
A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.
Presentation of pertinent data by one with special skill or knowledge representing mastery of a particular subject.
A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA.
Replacement of the knee joint.
An alloy of 60% cobalt, 20% chromium, 5% molybdenum, and traces of other substances. It is used in dentures, certain surgical appliances, prostheses, implants, and instruments.

Radiolucent lines and component stability in knee arthroplasty. Standard versus fluoroscopically-assisted radiographs. (1/2728)

The radiolucent lines and the stability of the components of 66 knee arthroplasties were assessed by six orthopaedic surgeons on conventional anteroposterior and lateral radiographs and on fluoroscopic views which had been taken on the same day. The examiners were blinded as to the patients and clinical results. The interpretation of the radiographs was repeated after five months. On fluoroscopically-assisted radiographs four of the six examiners identified significantly more radiolucent lines for the femoral component (p < 0.05) and one significantly more for the tibial implant. Five examiners rated more femoral components as radiologically loose on fluoroscopically-assisted radiographs (p = 0.0008 to 0.0154), but none did so for the tibial components. The mean intra- and interobserver kappa values were higher for fluoroscopically-assisted radiographs for both components. We have shown that fluoroscopically-assisted radiographs allow more reproducible, and therefore reliable, detection of radiolucent lines in total knee arthroplasty. Assessment of the stability of the components is significantly influenced by the radiological technique used. Conventional radiographs are not adequate for evaluation of the stability of total knee arthroplasty and should be replaced by fluoroscopically-assisted films.  (+info)

Analysis of 118 second-generation metal-on-metal retrieved hip implants. (2/2728)

Osteolysis is due to particulate wear debris and is responsible for the long-term failure of total hip replacements. It has stimulated the development of alternative joint surfaces such as metal-on-metal or ceramic-on-ceramic implants. Since 1988 the second-generation metal-on-metal implant Metasul has been used in over 60 000 hips. Analysis of 118 retrieved specimens of the head or cup showed rates of wear of approximately 25 microm for the whole articulation per year in the first year, decreasing to about 5 microm per year after the third. Metal surfaces have a 'self-polishing' capacity. Scratches are worn out by further joint movement. Volumetric wear was decreased some 60-fold compared with that of metal-on-polyethylene implants, suggesting that second-generation metal-on-metal prostheses may considerably reduce osteolysis.  (+info)

Migration of the Duraloc cup at two years. (3/2728)

We carried out 71 primary total hip arthroplasties using porous-coated, hemispherical press-fit Duraloc '100 Series' cups in 68 consecutive patients; 61 were combined with the cementless Spotorno stem and ten with the cemented Lubinus SP II stem. Under-reaming of 2 mm achieved a press-fit. Of the 71 hips, 69 (97.1%) were followed up after a mean of 2.4 years. Migration analysis was performed by the Ein Bild Rontgen Analyse method, with an accuracy of 1 mm. The mean total migration after 24 months was 1.13 mm. Using the definition of loosening as a total migration of 1 mm, it follows that 30 out of 63 cups (48%) were loose at 24 months.  (+info)

Survivorship and radiological analysis of the standard Souter-Strathclyde total elbow arthroplasty. (4/2728)

We undertook a radiological analysis of 186 standard Souter implants to determine survivorship and to analyse the pattern of failure in those needing revision. The implants had been inserted as a primary procedure in patients with rheumatoid arthritis of the elbow at our hospital over the last 12 years. Taking revision as an endpoint, the survivorship after 12 years was 87%. If, however, revision and loosening, defined as the Hindex value equivalent to demarcation of 1 mm around the whole implant, are also included, the survivorship falls to 80%. Of the 24 implants revised, 18 (75%) were for problems with the humeral component, three (12.5%) with the ulnar component and three (12.5%) for instability. Loosening of the humeral component occurred when the implant extended into the humerus, with the tip moving anteriorly on to the anterior humeral cortex. Our study indicates that loosening can be predicted by the rate of change in this angle of extension of the prosthesis.  (+info)

Cement migration after THR. A comparison of charnley elite and exeter femoral stems using RSA. (5/2728)

Studies using roentgen stereophotogrammetric analysis (RSA) have shown that the femoral components of cemented total hip replacements (THR) migrate distally relative to the bone, but it is not clear whether this occurs at the cement-implant or the cement-bone interface or within the cement mantle. Our aim was to determine where this migration occurred, since this has important implications for the way in which implants function and fail. Using RSA we compared for two years the migration of the tip of the stem with that of the cement restrictor for two different designs of THR, the Exeter and Charnley Elite. We have assumed that if the cement restrictor migrates, then at least part of the cement mantle also migrates. Our results have shown that the Exeter migrates distally three times faster than the Charnley Elite and at different interfaces. With the Exeter migration was at the cement-implant interface whereas with the Charnley Elite there was migration at both the cement-bone and the cement-implant interfaces.  (+info)

Subsidence of a non-polished stem in revisions of the hip using impaction allograft. Evaluation with radiostereometry and dual-energy X-ray absorptiometry. (6/2728)

We revised 24 consecutive hips with loosening of the femoral stem using impaction allograft and a cemented stem with an unpolished proximal surface. Repeated radiostereometric examinations for up to two years showed a slow rate of subsidence with a mean of 0.32 mm (-2.0 to +0.31). Fifteen cases followed for a further year showed the same mean subsidence after three years, indicating stabilisation. A tendency to retroversion of the stems was noted between the operation and the last follow-up. Retroversion was also recorded when displacement of the stem was studied in ten of the patients after two years. Repeated determination of bone mineral density showed an initial loss after six months, followed by recovery to the postoperative level at two years. Defects in the cement mantle and malalignment of the stem were often noted on postoperative radiographs, but did not correlate with the degrees of migration or displacement. After one year, increasing frequency of trabecular remodelling or resorption of the graft was observed in the greater trochanter and distal to the tip of the stem. Cortical repair was noted distally and medially (Gruen regions 3, 5 and 6). Migration of the stems was the lowest reported to date, which we attribute to the improved grafting technique and to the hardness of the graft.  (+info)

Induction of macrophage C-C chemokine expression by titanium alloy and bone cement particles. (7/2728)

Particulate wear debris is associated with periprosthetic inflammation and loosening in total joint arthroplasty. We tested the effects of titanium alloy (Ti-alloy) and PMMA particles on monocyte/macrophage expression of the C-C chemokines, monocyte chemoattractant protein-1 (MCP-1), monocyte inflammatory protein-1 alpha (MIP-1alpha), and regulated upon activation normal T expressed and secreted protein (RANTES). Periprosthetic granulomatous tissue was analysed for expression of macrophage chemokines by immunohistochemistry. Chemokine expression in human monocytes/macrophages exposed to Ti-alloy and PMMA particles in vitro was determined by RT-PCR, ELISA and monocyte migration. We observed MCP-1 and MIP-1alpha expression in all tissue samples from failed arthroplasties. Ti-alloy and PMMA particles increased expression of MCP-1 and MIP-1alpha in macrophages in vitro in a dose- and time-dependent manner whereas RANTES was not detected. mRNA signal levels for MCP-1 and MIP-1alpha were also observed in cells after exposure to particles. Monocyte migration was stimulated by culture medium collected from macrophages exposed to Ti-alloy and PMMA particles. Antibodies to MCP-1 and MIP-1alpha inhibited chemotactic activity of the culture medium samples. Release of C-C chemokines by macrophages in response to wear particles may contribute to chronic inflammation at the bone-implant interface in total joint arthroplasty.  (+info)

Cytokine levels in synovial fluid from hips with well-functioning or loose prostheses. (8/2728)

We analysed synovial fluid from 88 hips, 38 with osteoarthritis and 12 with well-functioning and 38 with loose hip prostheses. The levels of TNF-alpha, IL-1beta (71 hips) and IL-6 (45 hips) were measured using the ELISA technique. Joints with well-functioning or loose prostheses had significantly increased levels of TNF-alpha compared with those with osteoarthritis. Hips with aseptic loosening also had higher levels of IL-1beta but not of IL-6 compared with those without an implant. The levels of TNF-alpha and IL-1beta did not differ between hips with stable and loose prostheses. Higher levels of TNF-alpha were found in hips with bone resorption of type II and type III (Gustilo-Pasternak) compared with those with type-I loosening. The level of cytokines in joint fluid was not influenced by the time in situ of the implants or the age, gender or area of the osteolysis as measured on conventional radiographs. Our findings support the theory that macrophages in the joint capsule increase the production of TNF-alpha at an early phase probably because of particle load and in the absence of clinical loosening. Since TNF-alpha has an important role in the osteolytic process, the interfaces should be protected from penetration of joint fluid.  (+info)

Prosthesis failure is a term used to describe a situation where a prosthetic device, such as an artificial joint or limb, has stopped functioning or failed to meet its intended purpose. This can be due to various reasons, including mechanical failure, infection, loosening of the device, or a reaction to the materials used in the prosthesis.

Mechanical failure can occur due to wear and tear, manufacturing defects, or improper use of the prosthetic device. Infection can also lead to prosthesis failure, particularly in cases where the prosthesis is implanted inside the body. The immune system may react to the presence of the foreign material, leading to inflammation and infection.

Loosening of the prosthesis can also cause it to fail over time, as the device becomes less stable and eventually stops working properly. Additionally, some people may have a reaction to the materials used in the prosthesis, leading to tissue damage or other complications that can result in prosthesis failure.

In general, prosthesis failure can lead to decreased mobility, pain, and the need for additional surgeries or treatments to correct the problem. It is important for individuals with prosthetic devices to follow their healthcare provider's instructions carefully to minimize the risk of prosthesis failure and ensure that the device continues to function properly over time.

Prosthesis design is a specialized field in medical device technology that involves creating and developing artificial substitutes to replace a missing body part, such as a limb, tooth, eye, or internal organ. The design process typically includes several stages: assessment of the patient's needs, selection of appropriate materials, creation of a prototype, testing and refinement, and final fabrication and fitting of the prosthesis.

The goal of prosthesis design is to create a device that functions as closely as possible to the natural body part it replaces, while also being comfortable, durable, and aesthetically pleasing for the patient. The design process may involve collaboration between medical professionals, engineers, and designers, and may take into account factors such as the patient's age, lifestyle, occupation, and overall health.

Prosthesis design can be highly complex, particularly for advanced devices such as robotic limbs or implantable organs. These devices often require sophisticated sensors, actuators, and control systems to mimic the natural functions of the body part they replace. As a result, prosthesis design is an active area of research and development in the medical field, with ongoing efforts to improve the functionality, comfort, and affordability of these devices for patients.

Prostheses: Artificial substitutes or replacements for missing body parts, such as limbs, eyes, or teeth. They are designed to restore the function, appearance, or mobility of the lost part. Prosthetic devices can be categorized into several types, including:

1. External prostheses: Devices that are attached to the outside of the body, like artificial arms, legs, hands, and feet. These may be further classified into:
a. Cosmetic or aesthetic prostheses: Primarily designed to improve the appearance of the affected area.
b. Functional prostheses: Designed to help restore the functionality and mobility of the lost limb.
2. Internal prostheses: Implanted artificial parts that replace missing internal organs, bones, or tissues, such as heart valves, hip joints, or intraocular lenses.

Implants: Medical devices or substances that are intentionally placed inside the body to replace or support a missing or damaged biological structure, deliver medication, monitor physiological functions, or enhance bodily functions. Examples of implants include:

1. Orthopedic implants: Devices used to replace or reinforce damaged bones, joints, or cartilage, such as knee or hip replacements.
2. Cardiovascular implants: Devices that help support or regulate heart function, like pacemakers, defibrillators, and artificial heart valves.
3. Dental implants: Artificial tooth roots that are placed into the jawbone to support dental prostheses, such as crowns, bridges, or dentures.
4. Neurological implants: Devices used to stimulate nerves, brain structures, or spinal cord tissues to treat various neurological conditions, like deep brain stimulators for Parkinson's disease or cochlear implants for hearing loss.
5. Ophthalmic implants: Artificial lenses that are placed inside the eye to replace a damaged or removed natural lens, such as intraocular lenses used in cataract surgery.

A joint prosthesis, also known as an artificial joint or a replacement joint, is a surgical implant used to replace all or part of a damaged or diseased joint. The most common types of joint prostheses are total hip replacements and total knee replacements. These prostheses typically consist of a combination of metal, plastic, and ceramic components that are designed to replicate the movement and function of a natural joint.

Joint prostheses are usually recommended for patients who have severe joint pain or mobility issues that cannot be adequately managed with other treatments such as physical therapy, medication, or lifestyle changes. The goal of joint replacement surgery is to relieve pain, improve joint function, and enhance the patient's quality of life.

Joint prostheses are typically made from materials such as titanium, cobalt-chrome alloys, stainless steel, polyethylene plastic, and ceramics. The choice of material depends on a variety of factors, including the patient's age, activity level, weight, and overall health.

While joint replacement surgery is generally safe and effective, there are risks associated with any surgical procedure, including infection, blood clots, implant loosening or failure, and nerve damage. Patients who undergo joint replacement surgery typically require several weeks of rehabilitation and physical therapy to regain strength and mobility in the affected joint.

A knee prosthesis, also known as a knee replacement or artificial knee joint, is a medical device used to replace the damaged or diseased weight-bearing surfaces of the knee joint. It typically consists of three components: the femoral component (made of metal) that fits over the end of the thighbone (femur), the tibial component (often made of metal and plastic) that fits into the top of the shinbone (tibia), and a patellar component (usually made of plastic) that replaces the damaged surface of the kneecap.

The primary goal of knee prosthesis is to relieve pain, restore function, and improve quality of life for individuals with advanced knee joint damage due to conditions such as osteoarthritis, rheumatoid arthritis, or traumatic injuries. The procedure to implant a knee prosthesis is called knee replacement surgery or total knee arthroplasty (TKA).

A hip prosthesis, also known as a total hip replacement, is a surgical implant designed to replace the damaged or diseased components of the human hip joint. The procedure involves replacing the femoral head (the ball at the top of the thigh bone) and the acetabulum (the socket in the pelvis) with artificial parts, typically made from materials such as metal, ceramic, or plastic.

The goal of a hip prosthesis is to relieve pain, improve joint mobility, and restore function, allowing patients to return to their normal activities and enjoy an improved quality of life. The procedure is most commonly performed in individuals with advanced osteoarthritis, rheumatoid arthritis, or other degenerative conditions that have caused significant damage to the hip joint.

There are several different types of hip prostheses available, each with its own unique design and set of benefits and risks. The choice of prosthesis will depend on a variety of factors, including the patient's age, activity level, overall health, and specific medical needs. In general, however, all hip prostheses are designed to provide a durable, long-lasting solution for patients suffering from debilitating joint pain and stiffness.

A penile prosthesis is a medical device that is implanted inside the penis to treat erectile dysfunction. It consists of a pair of inflatable or semi-rigid rods, which are surgically placed into the corpora cavernosa (the two sponge-like areas inside the penis that fill with blood to create an erection). The implant allows the person with ED to have a controlled and manual erection suitable for sexual intercourse. This is usually considered as a last resort when other treatments, such as medications or vacuum devices, have failed.

A heart valve prosthesis is a medical device that is implanted in the heart to replace a damaged or malfunctioning heart valve. The prosthetic valve can be made of biological tissue (such as from a pig or cow) or artificial materials (such as carbon or polyester). Its function is to allow for the proper directional flow of blood through the heart, opening and closing with each heartbeat to prevent backflow of blood.

There are several types of heart valve prostheses, including:

1. Mechanical valves: These are made entirely of artificial materials and have a longer lifespan than biological valves. However, they require the patient to take blood-thinning medication for the rest of their life to prevent blood clots from forming on the valve.
2. Bioprosthetic valves: These are made of biological tissue and typically last 10-15 years before needing replacement. They do not require the patient to take blood-thinning medication, but there is a higher risk of reoperation due to degeneration of the tissue over time.
3. Homografts or allografts: These are human heart valves that have been donated and preserved for transplantation. They have similar longevity to bioprosthetic valves and do not require blood-thinning medication.
4. Autografts: In this case, the patient's own pulmonary valve is removed and used to replace the damaged aortic valve. This procedure is called the Ross procedure and has excellent long-term results, but it requires advanced surgical skills and is not widely available.

The choice of heart valve prosthesis depends on various factors, including the patient's age, overall health, lifestyle, and personal preferences.

Heart failure is a pathophysiological state in which the heart is unable to pump sufficient blood to meet the metabolic demands of the body or do so only at the expense of elevated filling pressures. It can be caused by various cardiac disorders, including coronary artery disease, hypertension, valvular heart disease, cardiomyopathy, and arrhythmias. Symptoms may include shortness of breath, fatigue, and fluid retention. Heart failure is often classified based on the ejection fraction (EF), which is the percentage of blood that is pumped out of the left ventricle during each contraction. A reduced EF (less than 40%) is indicative of heart failure with reduced ejection fraction (HFrEF), while a preserved EF (greater than or equal to 50%) is indicative of heart failure with preserved ejection fraction (HFpEF). There is also a category of heart failure with mid-range ejection fraction (HFmrEF) for those with an EF between 40-49%.

Artificial limbs, also known as prosthetics, are artificial substitutes that replace a part or all of an absent extremity or limb. They are designed to restore the function, mobility, and appearance of the lost limb as much as possible. Artificial limbs can be made from various materials such as wood, plastic, metal, or carbon fiber, and they can be custom-made to fit the individual's specific needs and measurements.

Prosthetic limbs can be categorized into two main types: cosmetic and functional. Cosmetic prosthetics are designed to look like natural limbs and are primarily used to improve the appearance of the person. Functional prosthetics, on the other hand, are designed to help the individual perform specific tasks and activities. They may include features such as hooks, hands, or specialized feet that can be used for different purposes.

Advances in technology have led to the development of more sophisticated artificial limbs, including those that can be controlled by the user's nervous system, known as bionic prosthetics. These advanced prosthetic devices can provide a greater degree of mobility and control for the user, allowing them to perform complex movements and tasks with ease.

A visual prosthesis, also known as a retinal implant or bionic eye, is a medical device that aims to restore some functional vision in individuals who have severe visual impairment or blindness due to certain eye conditions such as retinitis pigmentosa or age-related macular degeneration.

The prosthesis works by electrically stimulating the remaining viable nerve cells in the retina, which then transmit the signals to the brain via the optic nerve. The device typically consists of a camera that captures visual information, a processor that converts the images into electrical signals, and an electrode array that is implanted onto the surface of the retina.

The electrical stimulation of the retinal cells creates patterns of light in the individual's visual field, allowing them to perceive shapes, edges, and movements. While the level of visual acuity achieved with current visual prostheses is still limited, they can significantly improve the quality of life for some individuals by enabling them to perform tasks such as recognizing objects, navigating their environment, and identifying facial expressions.

Prosthesis implantation is a surgical procedure where an artificial device or component, known as a prosthesis, is placed inside the body to replace a missing or damaged body part. The prosthesis can be made from various materials such as metal, plastic, or ceramic and is designed to perform the same function as the original body part.

The implantation procedure involves making an incision in the skin to create a pocket where the prosthesis will be placed. The prosthesis is then carefully positioned and secured in place using screws, cement, or other fixation methods. In some cases, tissue from the patient's own body may be used to help anchor the prosthesis.

Once the prosthesis is in place, the incision is closed with sutures or staples, and the area is bandaged. The patient will typically need to undergo rehabilitation and physical therapy to learn how to use the new prosthesis and regain mobility and strength.

Prosthesis implantation is commonly performed for a variety of reasons, including joint replacement due to arthritis or injury, dental implants to replace missing teeth, and breast reconstruction after mastectomy. The specific procedure and recovery time will depend on the type and location of the prosthesis being implanted.

Prosthesis fitting is the process of selecting, designing, fabricating, and fitting a prosthetic device to replace a part of an individual's body that is missing due to congenital absence, illness, injury, or amputation. The primary goal of prosthesis fitting is to restore the person's physical function, mobility, and independence, as well as improve their overall quality of life.

The process typically involves several steps:

1. Assessment: A thorough evaluation of the patient's medical history, physical condition, and functional needs is conducted to determine the most appropriate type of prosthesis. This may include measurements, castings, or digital scans of the residual limb.

2. Design: Based on the assessment, a customized design plan is created for the prosthetic device, taking into account factors such as the patient's lifestyle, occupation, and personal preferences.

3. Fabrication: The prosthesis is manufactured using various materials, components, and techniques to meet the specific requirements of the patient. This may involve the use of 3D printing, computer-aided design (CAD), or traditional handcrafting methods.

4. Fitting: Once the prosthesis is fabricated, it is carefully fitted to the patient's residual limb, ensuring optimal comfort, alignment, and stability. Adjustments may be made as needed to achieve the best fit and function.

5. Training: The patient receives training on how to use and care for their new prosthetic device, including exercises to strengthen the residual limb and improve overall mobility. Follow-up appointments are scheduled to monitor progress, make any necessary adjustments, and provide ongoing support.

A neural prosthesis is a type of medical device that is designed to assist or replace the function of impaired nervous system structures. These devices can be used to stimulate nerves and restore sensation, movement, or other functions that have been lost due to injury or disease. They may also be used to monitor neural activity and provide feedback to the user or to a external device.

Neural prostheses can take many forms, depending on the specific function they are intended to restore. For example, a cochlear implant is a type of neural prosthesis that is used to restore hearing in people with severe to profound hearing loss. The device consists of a microphone, a processor, and a array of electrodes that are implanted in the inner ear. Sound is converted into electrical signals by the microphone and processor, and these signals are then used to stimulate the remaining nerve cells in the inner ear, allowing the user to hear sounds.

Other examples of neural prostheses include deep brain stimulation devices, which are used to treat movement disorders such as Parkinson's disease; retinal implants, which are used to restore vision in people with certain types of blindness; and sacral nerve stimulators, which are used to treat urinary incontinence.

It is important to note that neural prostheses are not intended to cure or fully reverse the underlying condition that caused the impairment, but rather to help restore some level of function and improve the user's quality of life.

An ossicular prosthesis is a medical device used to replace one or more of the small bones (ossicles) in the middle ear that are involved in hearing. These bones, known as the malleus, incus, and stapes, form a chain responsible for transmitting sound vibrations from the eardrum to the inner ear.

An ossicular prosthesis is typically made of biocompatible materials such as ceramic, plastic, or metal. The prosthesis is designed to bypass damaged or missing ossicles and reestablish the connection between the eardrum and the inner ear, thereby improving hearing function. Ossicular prostheses are often used in surgeries aimed at reconstructing the middle ear, such as tympanoplasty or stapedectomy, to treat various types of conductive hearing loss.

A dental prosthesis is a device that replaces one or more missing teeth or parts of teeth to correct deficiencies in chewing ability, speech, and aesthetics. It can be removable or fixed (permanent) and can be made from various materials such as acrylic resin, porcelain, metal alloys, or a combination of these. Examples of dental prostheses include dentures, bridges, crowns, and implants.

A dental prosthesis that is supported by dental implants is an artificial replacement for one or more missing teeth. It is a type of dental restoration that is anchored to the jawbone using one or more titanium implant posts, which are surgically placed into the bone. The prosthesis is then attached to the implants, providing a stable and secure fit that closely mimics the function and appearance of natural teeth.

There are several types of implant-supported dental prostheses, including crowns, bridges, and dentures. A single crown may be used to replace a single missing tooth, while a bridge or denture can be used to replace multiple missing teeth. The specific type of prosthesis used will depend on the number and location of the missing teeth, as well as the patient's individual needs and preferences.

Implant-supported dental prostheses offer several advantages over traditional removable dentures, including improved stability, comfort, and functionality. They also help to preserve jawbone density and prevent facial sagging that can occur when teeth are missing. However, they do require a surgical procedure to place the implants, and may not be suitable for all patients due to factors such as bone density or overall health status.

Heart valve prosthesis implantation is a surgical procedure where an artificial heart valve is inserted to replace a damaged or malfunctioning native heart valve. This can be necessary for patients with valvular heart disease, including stenosis (narrowing) or regurgitation (leaking), who do not respond to medical management and are at risk of heart failure or other complications.

There are two main types of artificial heart valves used in prosthesis implantation: mechanical valves and biological valves. Mechanical valves are made of synthetic materials, such as carbon and metal, and can last a long time but require lifelong anticoagulation therapy to prevent blood clots from forming. Biological valves, on the other hand, are made from animal or human tissue and typically do not require anticoagulation therapy but may have a limited lifespan and may need to be replaced in the future.

The decision to undergo heart valve prosthesis implantation is based on several factors, including the patient's age, overall health, type and severity of valvular disease, and personal preferences. The procedure can be performed through traditional open-heart surgery or minimally invasive techniques, such as robotic-assisted surgery or transcatheter aortic valve replacement (TAVR). Recovery time varies depending on the approach used and individual patient factors.

Treatment failure is a term used in medicine to describe the situation when a prescribed treatment or intervention is not achieving the desired therapeutic goals or objectives. This may occur due to various reasons, such as:

1. Development of drug resistance by the pathogen or disease being treated.
2. Inadequate dosage or frequency of the medication.
3. Poor adherence or compliance to the treatment regimen by the patient.
4. The presence of underlying conditions or comorbidities that may affect the efficacy of the treatment.
5. The severity or progression of the disease despite appropriate treatment.

When treatment failure occurs, healthcare providers may need to reassess the patient's condition and modify the treatment plan accordingly, which may include adjusting the dosage, changing the medication, adding new medications, or considering alternative treatments.

A blood vessel prosthesis is a medical device that is used as a substitute for a damaged or diseased natural blood vessel. It is typically made of synthetic materials such as polyester, Dacron, or ePTFE (expanded polytetrafluoroethylene) and is designed to mimic the function of a native blood vessel by allowing the flow of blood through it.

Blood vessel prostheses are used in various surgical procedures, including coronary artery bypass grafting, peripheral arterial reconstruction, and the creation of arteriovenous fistulas for dialysis access. The choice of material and size of the prosthesis depends on several factors, such as the location and diameter of the vessel being replaced, the patient's age and overall health status, and the surgeon's preference.

It is important to note that while blood vessel prostheses can be effective in restoring blood flow, they may also carry risks such as infection, thrombosis (blood clot formation), and graft failure over time. Therefore, careful patient selection, surgical technique, and postoperative management are crucial for the success of these procedures.

An amputee is a person who has had a limb or extremity removed by trauma, medical illness, or surgical intervention. Amputation may affect any part of the body, including fingers, toes, hands, feet, arms, and legs. The level of amputation can vary from partial loss to complete removal of the affected limb.

There are several reasons why a person might become an amputee:
- Trauma: Accidents, injuries, or violence can result in amputations due to severe tissue damage or irreparable vascular injury.
- Medical illness: Certain medical conditions such as diabetes, peripheral arterial disease, and cancer may require amputation if the affected limb cannot be saved through other treatments.
- Infection: Severe infections that do not respond to antibiotics or other treatments may necessitate amputation to prevent the spread of infection.
- Congenital defects: Some individuals are born with missing or malformed limbs, making them congenital amputees.

Amputees face various challenges, including physical limitations, emotional distress, and social adjustment. However, advancements in prosthetics and rehabilitation have significantly improved the quality of life for many amputees, enabling them to lead active and fulfilling lives.

A maxillofacial prosthesis is a custom-made device used to replace all or part of a facial feature, such as an eye, ear, nose, or lip, that has been lost due to trauma, cancer surgery, or other causes. It is typically made from materials like silicone, acrylic, or nylon and is designed to mimic the appearance and texture of natural skin and tissues.

Maxillofacial prostheses are created by trained professionals called maxillofacial prosthodontists, who have specialized training in the diagnosis, treatment planning, and rehabilitation of patients with facial defects. The process of creating a maxillofacial prosthesis typically involves taking an impression of the affected area, creating a custom-made mold, and then fabricating the prosthesis to fit precisely over the defect.

Maxillofacial prostheses can help improve patients' appearance, self-confidence, and quality of life by restoring their facial symmetry and functionality. They may also help protect the underlying tissues and structures from injury or infection, and can be used in conjunction with other treatments, such as radiation therapy or chemotherapy, to enhance their effectiveness.

An artificial larynx, also known as a voice prosthesis or speech aid, is a device used to help individuals who have undergone a laryngectomy (surgical removal of the larynx) or have other conditions that prevent them from speaking normally. The device generates sound mechanically, which can then be shaped into speech by the user.

There are two main types of artificial larynx devices:

1. External: This type of device consists of a small electronic unit that produces sound when the user presses a button or activates it with a breath. The sound is then directed through a tube or hose into a face mask or a mouthpiece, where the user can shape it into speech.
2. Internal: An internal artificial larynx, also known as a voice prosthesis, is implanted in the body during surgery. It works by allowing air to flow from the trachea into the esophagus and then through the voice prosthesis, which creates sound that can be used for speech.

Both types of artificial larynx devices require practice and training to use effectively, but they can significantly improve communication and quality of life for individuals who have lost their natural voice due to laryngeal cancer or other conditions.

Arthroplasty, replacement, is a surgical procedure where a damaged or diseased joint surface is removed and replaced with an artificial implant or device. The goal of this surgery is to relieve pain, restore function, and improve the quality of life for patients who have severe joint damage due to arthritis or other conditions.

During the procedure, the surgeon removes the damaged cartilage and bone from the joint and replaces them with a metal, plastic, or ceramic component that replicates the shape and function of the natural joint surface. The most common types of joint replacement surgery are hip replacement, knee replacement, and shoulder replacement.

The success rate of joint replacement surgery is generally high, with many patients experiencing significant pain relief and improved mobility. However, as with any surgical procedure, there are risks involved, including infection, blood clots, implant loosening or failure, and nerve damage. Therefore, it's essential to discuss the potential benefits and risks of joint replacement surgery with a healthcare provider before making a decision.

An artificial eye, also known as a prosthetic eye, is a type of medical device that is used to replace a natural eye that has been removed or is not functional due to injury, disease, or congenital abnormalities. It is typically made of acrylic or glass and is custom-made to match the size, shape, and color of the patient's other eye as closely as possible.

The artificial eye is designed to fit over the eye socket and rest on the eyelids, allowing the person to have a more natural appearance and improve their ability to blink and close their eye. It does not restore vision, but it can help protect the eye socket and improve the patient's self-esteem and quality of life.

The process of fitting an artificial eye typically involves several appointments with an ocularist, who is a healthcare professional trained in the measurement, design, and fabrication of prosthetic eyes. The ocularist will take impressions of the eye socket, create a model, and then use that model to make the artificial eye. Once the artificial eye is made, the ocularist will fit it and make any necessary adjustments to ensure that it is comfortable and looks natural.

Penile implantation, also known as a prosthetic penis or penile prosthesis, is a surgical procedure to place devices into the penis to help a person with erectile dysfunction (ED) achieve an erection. The two main types of penile implants are inflatable and semi-rigid rods.

The inflatable implant consists of a fluid-filled reservoir, a pump, and two or three inflatable cylinders in the penis. The semi-rigid rod implant is a pair of flexible rods that are bent into an erect position for sexual intercourse and can be straightened when not in use.

Penile implantation is typically considered as a last resort treatment option for ED, when other treatments such as medications, vacuum constriction devices, or penile injections have failed or are not suitable. The procedure is typically performed by a urologist under general or spinal anesthesia and requires a hospital stay of one to two days.

It's important to note that like any surgical procedure, penile implantation also has risks such as infection, bleeding, mechanical failure, and device malfunction. It is essential for patients to discuss the potential benefits and risks with their healthcare provider before making a decision about this treatment option.

Prosthesis-related infections, also known as prosthetic joint infections (PJIs), are infections that occur around or within a prosthetic device, such as an artificial joint. These infections can be caused by bacteria, fungi, or other microorganisms and can lead to serious complications if not treated promptly and effectively.

Prosthesis-related infections can occur soon after the implantation of the prosthetic device (early infection) or months or even years later (late infection). Early infections are often caused by bacteria that enter the surgical site during the procedure, while late infections may be caused by hematogenous seeding (i.e., when bacteria from another source spread through the bloodstream and settle in the prosthetic device) or by contamination during a subsequent medical procedure.

Symptoms of prosthesis-related infections can include pain, swelling, redness, warmth, and drainage around the affected area. In some cases, patients may also experience fever, chills, or fatigue. Diagnosis typically involves a combination of clinical evaluation, laboratory tests (such as blood cultures, joint fluid analysis, and tissue biopsy), and imaging studies (such as X-rays, CT scans, or MRI).

Treatment of prosthesis-related infections usually involves a combination of antibiotics and surgical intervention. The specific treatment approach will depend on the type and severity of the infection, as well as the patient's overall health status. In some cases, it may be necessary to remove or replace the affected prosthetic device.

A reoperation is a surgical procedure that is performed again on a patient who has already undergone a previous operation for the same or related condition. Reoperations may be required due to various reasons, such as inadequate initial treatment, disease recurrence, infection, or complications from the first surgery. The nature and complexity of a reoperation can vary widely depending on the specific circumstances, but it often carries higher risks and potential complications compared to the original operation.

Expert testimony is a type of evidence presented in court by a qualified expert who has specialized knowledge, education, training, or experience in a particular field that is relevant to the case. The expert's role is to provide an objective and unbiased opinion based on their expertise to assist the judge or jury in understanding complex issues that are beyond the knowledge of the average person.

In medical cases, expert testimony may be presented by healthcare professionals such as doctors, nurses, or other medical experts who have specialized knowledge about the medical condition or treatment at issue. The expert's testimony can help establish the standard of care, diagnose a medical condition, evaluate the cause of an injury, or assess the damages suffered by the plaintiff.

Expert testimony must meet certain legal standards to be admissible in court. The expert must be qualified to testify based on their education, training, and experience, and their opinion must be based on reliable methods and data. Additionally, the expert's testimony must be relevant to the case and not unduly prejudicial or misleading.

Overall, expert testimony plays a critical role in medical cases by providing objective and unbiased evidence that can help judges and juries make informed decisions about complex medical issues.

The knee joint, also known as the tibiofemoral joint, is the largest and one of the most complex joints in the human body. It is a synovial joint that connects the thighbone (femur) to the shinbone (tibia). The patella (kneecap), which is a sesamoid bone, is located in front of the knee joint and helps in the extension of the leg.

The knee joint is made up of three articulations: the femorotibial joint between the femur and tibia, the femoropatellar joint between the femur and patella, and the tibiofibular joint between the tibia and fibula. These articulations are surrounded by a fibrous capsule that encloses the synovial membrane, which secretes synovial fluid to lubricate the joint.

The knee joint is stabilized by several ligaments, including the medial and lateral collateral ligaments, which provide stability to the sides of the joint, and the anterior and posterior cruciate ligaments, which prevent excessive forward and backward movement of the tibia relative to the femur. The menisci, which are C-shaped fibrocartilaginous structures located between the femoral condyles and tibial plateaus, also help to stabilize the joint by absorbing shock and distributing weight evenly across the articular surfaces.

The knee joint allows for flexion, extension, and a small amount of rotation, making it essential for activities such as walking, running, jumping, and sitting.

Arthroplasty, replacement, knee is a surgical procedure where the damaged or diseased joint surface of the knee is removed and replaced with an artificial joint or prosthesis. The procedure involves resurfacing the worn-out ends of the femur (thigh bone) and tibia (shin bone) with metal components, and the back of the kneecap with a plastic button. This surgery is usually performed to relieve pain and restore function in patients with severe knee osteoarthritis, rheumatoid arthritis, or traumatic injuries that have damaged the joint beyond repair. The goal of knee replacement surgery is to improve mobility, reduce pain, and enhance the quality of life for the patient.

Vitallium is not a medical term per se, but rather a trademarked name for a specific alloy that is often used in the medical field, particularly in orthopedic and dental applications. The term "Vitallium" was first coined by the International Nickel Company in 1932 to describe their cobalt-chromium-molybdenum alloy.

Medical Vitallium is typically composed of approximately 60% cobalt, 25% chromium, and 7.5% molybdenum, with trace amounts of other elements like carbon, manganese, silicon, and iron. This specific combination of metals results in an alloy that has several desirable properties for medical applications:

1. High strength-to-weight ratio: Vitallium is exceptionally strong and durable, making it suitable for load-bearing implants such as artificial hip or knee joints.
2. Corrosion resistance: The alloy exhibits excellent corrosion resistance in the human body, which helps to ensure the longevity of medical devices made from it.
3. Biocompatibility: Vitallium has been shown to be biocompatible, meaning that it does not typically cause adverse reactions or rejection when implanted into the human body.
4. Wear resistance: The alloy's hardness and durability make it resistant to wear, which is particularly important in dental applications where components like crowns and bridges must withstand constant use.
5. Magnetic resonance imaging (MRI) compatibility: Vitallium is generally considered safe for use in MRI scans, as it does not interfere significantly with the magnetic field or radiofrequency pulses used during the procedure.

Overall, while "Vitallium" may not be a medical term itself, it represents an important alloy that has contributed significantly to advancements in orthopedic and dental medicine.

Gruen, TA; McNeice, GM; Amstutz, HC (1979). "Modes of failure of cemented stem-type femoral components: a radiographic analysis ... After hip replacement, hip prosthesis zones are regions in the interface between prosthesis material and the surrounding bone. ... The Gruen zones is a system of dividing the interface between the bone and the stem of the hip prosthesis. Page 958 in John J. ... These are used as reference regions when describing for example complications including hip prosthesis loosening on medical ...
Newman MM, Hoffman MS, Gesink MH (1967). "Mechanical failure of Starr-Edwards aortic prosthesis due to ball fracture". J Thorac ... Hoffman, M. S.; Wellman, W. E.; Herrell, W. E. (1950-08-02). "Failure of absorption of aureomycin and terramycin administered ... Hoffman, M. S.; Wellman, W. E.; Herrell, W. E. (1950-08-02). "Failure of absorption of aureomycin and terramycin administered ... "Thromboembolic complications following insertion of the Hufnagel prosthesis". The Journal of Thoracic and Cardiovascular ...
Biological failures: These can occur due to caries in the tooth (one of the commonest causes of crown and bridge failures) or ... The prosthesis must be capable of tolerating occlusal forces, which would normally be received by the missing tooth as well as ... Mechanical failures: These failures can occur due to loss of retention of the bridge due to improper cementation, construction ... vitality loss or periodontal disease can all lead to bridge failure. Bridge failures result in clinical complications and ...
... catastrophic failure of the M6-C prosthesis has also been reported. "Recovery After Cervical Total Disc Replacement: Covered by ... One such recent study identifies a large "midterm failure rate" related to the M6-C. It recommends that "patients implanted ... Carrera, Diego A.; Ricks, Christian B. (2022-03-14). "Catastrophic delayed cervical arthroplasty failure: illustrative case". ... "Midterm osteolysis-induced aseptic failure of the M6-Câ„¢ cervical total disc replacement secondary to polyethylene wear debris ...
Frootko, N. J. (1984). "Causes of Ossiculoplasty Failure Using Porous Polyethylene (Plasti-Pore) Prostheses". In Grote, J. J. ( ...
This was further modified into the Delta III prosthesis in 1991. As Grammont's reverse ball and socket prosthesis gained ... Many doubted the effectiveness of his design and suggested that it would lead to higher failure rates, creating significant ... Unfortunately, his design resulted in several early failures, leading him to abandon this concept. Multiple other surgeons ... Grammont PM, Baulot E (January 1993). "Delta shoulder prosthesis for rotator cuff rupture". Orthopedics. 16 (1): 65-8. doi: ...
It is due to the failure of fusion of the maxillary prominence and medial nasal processes (formation of the primary palate). ... March 2006). "Application of a temporary palatal prosthesis in a puppy suffering from cleft palate". Journal of Veterinary ... It occurs due to the failure of fusion of the lateral palatine processes, the nasal septum, or the median palatine processes ( ... The resulting birth defect reflects the locations and severity of individual fusion failures (e.g., from a small lip or palate ...
Thus, heart valve failure is likely to threaten the life of the individual, while breast implant or hip joint failure is less ... nose prosthesis, ocular prosthesis, and injectable filler. Other types of organ dysfunction can occur in the systems of the ... The many examples of implant failure include rupture of silicone breast implants, hip replacement joints, and artificial heart ... The consequences of implant failure depend on the nature of the implant and its position in the body. ...
Bale appeared in Terrence Malick's drama Knight of Cups, which The Atlantic critic David Sims dubbed a "noble failure". During ... He used an ocular prosthesis in the film. The Wall Street Journal's Joe Morgenstern found his portrayal "scarily hilarious-or ... In the four years that followed American Psycho, Bale's career experienced critical and commercial failure. He next played a ...
This is because there is an increased risk of prosthesis failure over time due to factors such as the material used, infection ... A varus position of more than 3° has generally been found to increase the failure rate of the prosthesis. - Anterior femoral ... and retention of prosthesis. Acute hematogenous infections: debridement, antibiotic therapy, retention of prosthesis. Late ... Range of motion (to the limits of the prosthesis) is recovered over the first two weeks. Over time, patients are able to ...
High failure rates were associated with teeth that had previous root canal treatment, and with patients who exhibit para- ... A return visit is then required to fit the final prosthesis. Inlays and onlays may also be fabricated out of porcelain and ... A systemic review found that the most common cause of onlay failure is ceramic fracture, followed by ceramic de-bonding from ... Evidence (Fuzzi and Rapelli) has shown greater failure of Onlays and Inlays in molars than premolars over an 11.5 year period. ...
If prosthesis lands outside the landing zone nearer the board than where athlete landed, the jump counts as a failure. In ... Foot drag - often caused by an ill-fitting prosthesis - can be corrected by shortening the length of the prosthesis. Uneven ... Failure to do so could result in them being classified as an ambulatory class competitor. For people in this class with ... People in this class who are lower limb amputees are required to wear their leg prosthesis when they are on the track, and they ...
This condition is similar to the heart failure seen in gigantism. The prevalence of KFS is unknown due to the lack of studies ... September 2002). "Preliminary clinical experience with the Bryan Cervical Disc Prosthesis". Neurosurgery. 51 (3): 840-5, ... Papanastassiou ID, Baaj AA, Dakwar E, Eleraky M, Vrionis FD (March 2011). "Failure of cervical arthroplasty in a patient with ... disease can be addressed by performing cervical disc arthroplasty using a device such as the Bryan cervical disc prosthesis. ...
This failure causes feelings of intense guilt that not even Hamilton's long-term female friend Mildred Krantz can help him ... but replaced it with a self-designed cybernetic prosthesis. He also provided Superboy with the visor that duplicated Superman's ...
More modernly, the term hybrid has been used as it permits the inclusion of fixed prosthesis using a variety of both designs ... One major advantage of the resin-retained bridge over a conventional bridge is the failure mode is likely to be debonding of ... A resin-retained bridge (also known as resin-bonded-bridge or resin-bonded fixed dental prosthesis (RBFDP)) is a bridge (a ... Resin-retained-bridges should be considered when a fixed prosthesis retained by natural teeth is required. The use has been ...
Salazar E, Izaguirre R, Verdejo J, Mutchinick O (1996). "Failure of adjusted doses of subcutaneous heparin to prevent ... thromboembolic phenomena in pregnant patients with mechanical cardiac valve prostheses". J Am Coll Cardiol. 27 (7): 1698-703. ...
Tissue-integrated prostheses :osseointegration in clinical dentistry, Per-Ingavar Branemark, George A. Zarb, Tomas Albrektsson ... Failure of a dental implant is often related to the failure of the implant to osseointegrate correctly with the bone, or vice ... Implant failure refers to the failure of any medical implant to meet the claims of its manufacturer or the health care provider ... Implant failure can have any number of causes. The rates of failure vary for different implants. The monitoring of the safety ...
... prosthesis). It also includes treatment of end-stage renal diseases and dialysis, chronic infections (Hepatitis), organ failure ...
In September 1926, he had his right eye removed and replaced with a glass prosthesis. Having declined a job as Jack Dempsey's ... However, complications occurred and he died of heart failure on October 22, 1926, at 2:30 pm. Greb was buried at Calvary ...
The use of an implant prosthesis in the lower jaw could be recommended for younger patients as it is shown to significantly ... It was noted that the risk of implant failure was significantly higher in patients younger than 18 years, but there is ... Overall the use of an implant-prosthesis has a considerable functional, aesthetic and psychological advantage when compared to ...
The main advantages are a greater failure strength, and a good resistance to fatigue. Vitreous carbon is also used as it is ... TiN has been suggested as the friction surface in hip prostheses. While cell culture tests show a good biocompatibility, the ... The material can be used in middle ear ossicles, ocular prostheses, electrical insulation for pacemakers, catheter orifices and ... Aluminosilicates are commonly used in dental prostheses, pure or in ceramic-polymer composites. The ceramic-polymer composites ...
PJIs are the most common cause of knee replacement failures, and the third most common cause of hip replacement failures. As of ... DAIR is contraindicated if there is a sinus tract, loosening of the prosthesis, or the surgical wound cannot be closed. The ... Antibiotic treatment alone, without surgical debridement, usually results in treatment failure. Acute infections (in which the ... A sinus tract connecting the joint to the skin Purulence around the prosthesis Greater than 2000 leukocytes per μL or greater ...
The four implants support a fixed prosthesis with 10 to 14 teeth, and it is placed immediately, typically within 24 hours of ... Protecting the implants from failures even after the hybrid bridge is broken. this concept helps the clinician provide a better ... It consists of the rehabilitation of either edentulous or dentate maxilla and / or mandible with fixed prosthesis by placing ...
investigate medical equipment failures and provide advice about the purchase and installation of new equipment. • develop and ... design and develop engineered therapies (for example, neural-integrative prostheses). • adapt computer hardware or software for ... investigate medical equipment failure, and advise hospitals about purchasing and installing new equipment. Biomedical engineers ... Training Accident Investigation Analysis of Failures, Root Causes, and Human Factors Safe Medical Devices Act (SMDA) of 1990 ...
Therefore, visual prostheses are developed to restore vision for the blind by using the stimulation. Depending upon which ... heart failure, and even stroke. Early implantable pacemakers worked only a short time and needed periodic recharging by an ... Second Sight and the Humayun group at USC are the most active groups in the design of intraocular retinal prostheses. The ... Weiland J.D.; Humayun M.S. (July 2008). "Visual prosthesis". Proceedings of the IEEE. 96 (7): 1076-1084. doi:10.1109/JPROC. ...
... a predominant failure mode of medical prostheses. Narrow biocompatibility requirements within the medical industry have over ... The adverse turbulent flow in microfluidic applications can compound component failure modes due to the increased level of ... biologically inert has found wide uses in biomedical applications such as cardiovascular stents and in many skeletal prostheses ...
Soon the experiment proves to be a failure, as the fragile prosthesis in his brain moves, clouding his already weak vision, and ... Having been blind from birth, he volunteers for a risky experimental visual prosthesis that may restore his sight-having a ...
Gore-Tex cruciate ligament prosthesis demonstrated low rates of mechanical failure but high rates of rupture in follow-up. Gore ... "Early results of the Gore-Tex prosthesis used for ACL reconstruction showed low rates of failure. Unfortunately, with extended ... Mechanical failure, effusions, and infections continue to occur". At the time, the materials used in artificial ligaments could ... The native ACL of a human has a tensile strength on the order of kilonewtons, and an elongation at failure of approximately 10 ...
The lack of durable heart valve prostheses for young patients has driven forward research in tissue engineering approaches for ... leading to early failure of the valvular function. Aortic valve replacement using a homograft in orthotopic position was first ... The pulmonary valve then needs to be replaced by a heart valve prosthesis. A drawback of this method is that it can frequently ... Biological prostheses, i.e. pericardial heart valves of animal origin (xenogenic), offer a viable alternative. However, in ...
He lost his voice for a period before regaining it after several months of home recuperation with the aid of a voice prosthesis ... Schultz suffered congestive heart failure on November 14, 2011, which required hospital care. He died on November 26, 2011, ...
Vocal rehabilitation of tracheoesophageal speech failures. Head Neck. 1990 Jan-Feb. 12(1):69-73. [QxMD MEDLINE Link]. ... Tracheoesophageal Speech Prostheses. Selecting a Prosthesis. Several sizes and styles of tracheoesophageal prostheses are ... Repeated removal/insertion of prosthesis: Decrease the frequency of prosthesis changing, and perform laser removal of the ... depending on the size of the prosthesis. At this point, the prosthesis can be reinserted. ...
The animation is intended to help support expert testimony regarding why certain types of knee prosthesis (such as the Zimmer ... This weak and inadequate fusion allows movement and loosening between the femur and prosthesis resulting in prosthesis failure. ... Knee Prosthesis Failure Animation (Cementless CoCrMo Alloy). Posted by Trisha Haszel Kreibich on Thu, May 26, 2011 ... Topics: knee replacement, trial exhibit, implant failure, prosthesis, cementless, Zimmer NexGen, medical exhibit, cromium ...
Gruen, TA; McNeice, GM; Amstutz, HC (1979). "Modes of failure of cemented stem-type femoral components: a radiographic analysis ... After hip replacement, hip prosthesis zones are regions in the interface between prosthesis material and the surrounding bone. ... The Gruen zones is a system of dividing the interface between the bone and the stem of the hip prosthesis. Page 958 in John J. ... These are used as reference regions when describing for example complications including hip prosthesis loosening on medical ...
None of the 4 hospitals reported failures of biological indicators of sterilization during the period investigated. ... Oregon hospitals have been required to report knee prosthesis infections since 2009 and hip prosthesis infections since 2011. ... prosthesis excision, and prolonged administration of intravenous and broad spectrum antimicrobial drugs before prosthesis ... We identified a total of 7 M. fortuitum and 2 M. goodii surgical site infections involving 4 knee and 5 hip prostheses; 5 were ...
We report the early failure of five ceramic-on-ceramic hip resurfacings (CoCHRs). The ceramic used for the acetabular liner was ... Hip Prosthesis, Humans, Metals, Heavy, Middle Aged, Poisoning, Prosthesis Failure ... We report the early failure of five ceramic-on-ceramic hip resurfacings (CoCHRs). The ceramic used for the acetabular liner was ...
ICD-10 code T84.52XD for Infection and inflammatory reaction due to internal left hip prosthesis, subsequent encounter is a ... Excludes2: failure and rejection of transplanted organs and tissues (T86.-). fracture of bone following insertion of orthopedic ... Infection and inflammatory reaction due to internal left hip prosthesis, subsequent encounter T84.5 ... ICD-10-CM Code for Infection and inflammatory reaction due to internal left hip prosthesis, subsequent encounter T84.52XD ICD- ...
Heart Valve Prosthesis* * Humans * Male * Middle Aged * Mitral Valve / surgery * Prognosis * Prosthesis Failure* ...
Over 47% of the cementless primary hip prostheses were used in patients younger than 60 years and over 93% of the cemented ... the 5-year survival of the cementless hip prosthesis improved over time: it was 85 (82-87)% in 1985-1989, 89 (88-91)% in 1990- ...
Congestive Heart Failure. Cardiology Grand Rounds, Creighton University Cardiac Center 2004. *Evidence Based Guidelines for CVD ... LMWH As Bridging Therapy for Mechanical Prostheses in Noncardiac Surgery. Cardiology Grand Rounds, Creighton University ... DELIVER: Dapagliflozin Evaluation to Improve the LIVEs of Patients With PReserved Ejection Fraction Heart Failure (Astra-Zeneca ... comParIson Of Sacubitril/valsartaN versus Enalapril on Effect on NTpRo-bnp in Patients Stabilized from an Acute Heart Failure ...
Heart failure; heart infarct; heart infarction; heart prosthesis; heart transplant; Heart Transplantation; Heart, Artificial; ... cardiac failure; cardiac graft; cardiac infarct; Cardiac infarction; cardiac prosthesis; Cardiopulmonary Bypass; Cathetergram; ... failure; Failure (biologic function); Family suidae; Femoral vein; FLR; Funding; Grafting, Heart; heart attack; heart bypass; ... Heart failure ; cardiac failure ; Heart Transplantation ; heart transplant ; cardiac graft ; Heart Grafting ; Cardiac ...
CPAP use may have led to mans dental implant prosthesis failure. Use of a continuous positive airway pressure (CPAP) machine ... highlighting this sleep apnea therapy as a possible high-risk factor for implant failure. ... may have led a mans dental prosthesis to fail, ...
... and instability cited as causes of failure [7, 19-21]. Newer prosthesis is uncemented, comprises two or three modular ... and HINTEGRA prosthesis (Newdeal SA, Lyon, France). This is a pragmatic approach but the outcomes of different prostheses may ... of 1105 total ankle arthroplasties reported a 10% failure rate at 5 years with residual pain in 27%-60% of cases [23]. ... T. Anderson, F. Montgomery, and A. Carlsson, "Uncemented STAR total ankle prostheses: three to eight-year follow-up of fifty- ...
Occlusal overload was reported to be highly related with implant failure [28, 29]. Group functional occlusion and canine guided ... Influence of prosthesis type and retention mechanism on complications with fixed implant-supported prostheses: a systematic ... Influence of prosthesis type and retention mechanism on complications with fixed implant-supported prostheses: a systematic ... Meriç G, Erkmen E, Kurt A, Tunç Y, Eser A. Influence of prosthesis type and material on the stress distribution in bone around ...
Prosthesis survival was calculated according to the Kaplan-Meier method considering any reason for revision as failure. The ... The aim of this study is to examine the literature on locking plate failure rates, mode and reasons for failure. Methodology: A ... The aim of this study was to assess the 11-year outcomes of an off-the-shelf modular neck prosthesis in dysplastic patients and ... Anatomically designed prosthesis without cement for the treatment of osteoarthritis due to developmental dysplasia of the hip: ...
... or exp joint prosthesis/ or exp arthroplasty, replacement/ or prosthesis-related infections/ or prosthesis failure/. ... prostheses or prosthesis or prosthetic* or periprosthetic* or arthroplast*).ti,ab.. 3. ((bone* or joint* or knee* or hip or ... Included terms for prostheses and radionuclide imaging. Limits:. Publication years 2006 to Feb/March 2011 for primary studies; ... Among the modalities to diagnose cause of painful prostheses, 99mTc-MDP, 99mTc-SC, 99mTc-WBC, and PET expose the patient to ...
... retrieved prosthesis analysis and evaluation of the reason for failure. ...
Dental biomaterials are commonly used for producing tooth-, implant- or mucosa-borne prosthesis. Materials are initially tested ... conditions are being optimized with improved translational significance in an attempt to diminish clinical failures and ...
Strength and failure theories. Implant fatigue, fracture and corrosion.. BIOM 5314 (BMG 5314). Biocontrols. Application of ... Design of Orthopaedic Implants and Prostheses. Anatomy of the musculo-skeletal system. Electromyography. Static and dynamic ... Pathology of organ failure and bioengineering and clinical aspects of artificial organs. Examples: blood substitutes, ...
Instrument failure occurred in 2 patients, both of whom had substantial subsidence (8.47 and 3.69 mm, respectively). At 3 ... A 3D-printed vertebral prosthesis can be used to reconstruct a bone defect more precisely because of its tailored shape, with ... Prosthesis subsidence, fusion status, and instrumentation-related complications were evaluated. Stability of the anterior ... The overall fusion rate was 87.0%. The average prosthesis subsidence at the final follow-up was 1.60 ± 1.79 mm. ...
With things mechanical failure does occasionally happen, whether controls, seatback or prosthesis.. In many tandem taildraggers ... As you can see, the device is comprised of a ball on the end of the prosthesis and a socket mounted on the handlebar. The ... Following the preferences expressed by some here, the stick should be welded in to preclude that failure.. However seatbacks ... There has clearly been a mechanical failure between the prosthetic and the control column, but the problem was rectified and no ...
Instrument failure occurred in 2 patients, both of whom had substantial subsidence (8.47 and 3.69 mm, respectively). At 3 ... A 3D-printed vertebral prosthesis can be used to reconstruct a bone defect more precisely because of its tailored shape, with ... Prosthesis subsidence, fusion status, and instrumentation-related complications were evaluated. Stability of the anterior ... The overall fusion rate was 87.0%. The average prosthesis subsidence at the final follow-up was 1.60 ± 1.79 mm. ...
1991) A case for early surgery in native left-sided endocarditis complicated by heart failure: results in 203 patients. J Am ... He died at operation because there was no tissue to support a mitral valve prosthesis. ... The only death occurred in the youngest patient with multiorgan failure, who was moribund by the time endocarditis and aortic ... Another patient required mitral valve replacement four months after the first operation because of failure of his mitral valve ...
CUSUM analysis showed that failure rates diminished rapidly after 16 cases and reached an acceptable rate after 29 cases. ... Failures were identified in nine patients (18%). Two revisions and two dislocations were encountered in group A; one revision ... Emerson RJ, Higgins LL: Unicompartmental knee arthroplasty with the oxford prosthesis in patients with medial compartment ... Failures were identified in nine patients (18%). There was a trend toward a higher failure rate during the first 25 cases, ...
Most of the failures happened within the first year after installation for both implants (52.1%) and prostheses (41.8%).Study ... The main finding was that patients with few implants presented higher prosthesis failure rates than patients with more implants ... Cox regression was used to evaluate the associations between clinical covariates and prosthesis failure. The CSR was similar ... to fixed implant-supported prostheses.The thesis comprises four studies.Study I analysed implant and prosthesis failure rates ...
Mirra JM, Amstutz HC, Matos M, Gold R. The pathology of the joint tissues and its clinical relevance in prosthesis failure. ... the total duration of antimicrobial treatment is 3 months for hip prosthesis and 6 months for knee prosthesis. ... the total duration of antimicrobial treatment is 3 months for hip prosthesis and 6 months for knee prosthesis. ... 64, 66, 77, 79, 80, 81] Periprosthetic tissue should be obtained at the time of prosthesis removal for culture and histologic ...
Endosseous implant failure influenced by crown cementation: a clinical case report. Int J Oral Maxillofac Implants 2008 Sep-Oct ... Vahidi F, Pinto-Sinai G. Complications associated with implant-retained removable prostheses. Dent Clin North Am 2015 Jan;59(1 ... Al-Sabbagh M, Bhavsar I. Key local and surgical factors related to implant failure. Dent Clin North Am 2015 Jan;59(1):1-23. ... Keywords : Complication, Esthetics, Failure, Implant, Nerve injury, Success. Citation Information : Turkyilmaz I. A Proposal of ...
with heart failure, including non-diabetics. Urinary. albumin creatininine. Jul, 2011: European Journal of Heart Failure. ... Implant and prosthesis survival rates were calculated. The association between implant and prosthesis loss and quantitative and ... patients with chronic heart failure:. findings in the ALiskiren Observation. of heart Failure Treatment study.. CONCLUSIONS: ... Advanced Heart Failure and. Reduced Ejection Fraction: A. Randomized Clinical Trial.. Revie. w. ...
Mitigating the Impact of a Blowout Preventer Failure PhD candidate Folkers E. Rojas researches how to mitigate the impact of a ... MIT graduate student Katy Olesnavage redesigns the Jaipur Foot to create a high-value prosthesis at a low cost for those in ... Blowout Preventer failure by using a continuous feed of an occluding medium into an uncontrolled well. ...
IE and valve dehiscence, intracardiac fistula, or severe prosthetic dysfunction resulting in symptoms of heart failure ... or a mechanical prosthesis), the decision to use oral anticoagulation with either a vitamin K antagonist (VKA) or a non-VKA ... class III-IV symptoms who are not at high risk for surgery and who are not candidates for or have had failure of a previous ... Heart Failure Society of America, South Carolina Medical Association. Disclosure: Nothing to disclose. ...
  • You can be confident that the AMS 700â„¢ Inflatable Penile Prostheses will address your ED patients' needs. (bostonscientific.com)
  • Comparison of the patient and partner satisfaction with 700CX and Titan penile prostheses. (bostonscientific.com)
  • Today, penile prostheses have proven to be both reliable and durable, with approximately 20,000-30,000 devices implanted annually worldwide. (medscape.com)
  • These are used as reference regions when describing for example complications including hip prosthesis loosening on medical imaging. (wikipedia.org)
  • The results from first generation ankle prosthesis were disappointing with stiffness, wound complications, loosening, malalignment, impingement, and instability cited as causes of failure [ 7 , 19 - 21 ]. (hindawi.com)
  • 4 Examples of other, less common, delayed post-operative complications associated with pain in the prosthetic joint include component failure, instability, osteolysis, heterotrophic ossification, and soft tissue syndromes. (cadth.ca)
  • Prosthesis subsidence, fusion status, and instrumentation-related complications were evaluated. (thejns.org)
  • Each of these prostheses can present complications, either shared by all types of replacement or specific to each. (caringmedical.com)
  • The authors noted: "Knowledge of (these) different types of shoulder (replacement implants) prostheses and their complications' radiological signs are crucial for the radiologist to initiate prompt and adequate management. (caringmedical.com)
  • Pihlaja, J, Napankangas R, Raustia A. Early complications and shortterm failures of zirconia single crowns and partial fixed dental prostheses. (thejcdp.com)
  • Technical complications seemed to be more frequent than biological complications (caries, endodontic failure, root fracture, etc. (bvsalud.org)
  • Complications include progressive heart failure, arrhythmias, and endocarditis. (msdmanuals.com)
  • 2 The AMS 700â„¢ Inflatable Penile Prosthesis (IPP) is designed to provide optimal clinical outcomes, and ensure your peace of mind. (bostonscientific.com)
  • Inserting the AMS 700â„¢ Inflatable Penile Prosthesis (IPP) is now an even smoother procedure with the Boston Scientific Furlow Disposable Insertion Tool. (bostonscientific.com)
  • Patient and partner satisfaction after AMS inflatable penile prosthesis implant. (bostonscientific.com)
  • The history of modern ED surgery began with the development of the inflatable penile prosthesis by Scott and Bradley in the early 1970s. (medscape.com)
  • [ 1 ] This surgical treatment became the treatment of choice in men with significant organic ED. Although the popularity of the inflatable penile prosthesis increased during that time, its design suffered from unacceptable failure rates and the need for surgical revision. (medscape.com)
  • Dysphagia has been the most common complication after implantation of the Angelchik prosthesis. (sages.org)
  • It compares how new bone normally fuses with a prosthesis versus how ions emitted from the CoCrMo alloy inhibit osteoblasts (cells that are responsible for bone formation) from forming new bone. (medivisuals.com)
  • therefore, the fibroblasts form fibrous tissue between the bone and prosthesis. (medivisuals.com)
  • After hip replacement, hip prosthesis zones are regions in the interface between prosthesis material and the surrounding bone. (wikipedia.org)
  • The Gruen zones is a system of dividing the interface between the bone and the stem of the hip prosthesis. (wikipedia.org)
  • A 3D-printed vertebral prosthesis can be used to reconstruct a bone defect more precisely because of its tailored shape, with its innermost porous structure inducing bone ingrowth. (thejns.org)
  • Measurement of HU values with CT is a valuable method to evaluate the osseointegration at the bone-metal interface of a 3D-printed vertebral prosthesis. (thejns.org)
  • Demographic data, failure reason, types of revision prostheses, and the severity of bone defects were analyzed. (biomedcentral.com)
  • In patients with tibial bone defects AORI grade 2a, the failure rates of primary prostheses and primary prostheses with tibial stems were 25% and 0%, respectively. (biomedcentral.com)
  • He has pioneered a novel foot and ankle reconstruction surgery, using PMMA (Poly Methyl Methacrylate), also called Bone Cement, as foot bone replacement prosthesis for severely destroyed foot and ankle bones. (theseoultimes.com)
  • Over 47% of the cementless primary hip prostheses were used in patients younger than 60 years and over 93% of the cemented primary hips were used in patients 60 years or older. (nih.gov)
  • Acute right heart failure is a significant clinical problem which often occurs in patients affected by pulmonary embolism, pulmonary hypertension, or heart attack, as well as in patients who have been treated with cardiopulmonary bypass, heart transplantation, or left heart mechanical circulatory support. (inknowvation.com)
  • Patients with joint prostheses and symptoms such as pain or fever. (cadth.ca)
  • Instrument failure occurred in 2 patients, both of whom had substantial subsidence (8.47 and 3.69 mm, respectively). (thejns.org)
  • In these patients, a revision prosthesis has already been implanted for presumed aseptic loosening before the results of the intraoperative cultures become available. (medscape.com)
  • Patients who had an early postoperative infection are managed with débridement, replacement of the polyethylene (PE) insert of the acetabular/tibial component, retention of the prosthesis, and IV administration of antibiotics for 6 weeks. (medscape.com)
  • Patients who have an acute hematogenous infection are also managed with débridement, replacement of the PE insert, retention of the prosthesis if it is not loose, and IV administration of antibiotics for 6 weeks. (medscape.com)
  • The main finding was that patients with few implants presented higher prosthesis failure rates than patients with more implants per prosthesis.Of the most commonly used attachment systems, the ball/O-ring and the Ceka were the ones with the highest rates of patients with at least one implant failure. (kb.se)
  • The aim of this retrospective study was to evaluate mid-term implant and prosthesis survival in patients with edentulous atrophic maxillae submitted to zygomatic implant-supported fixed rehabilitation and to identify possible related risk factors. (qxmd.com)
  • Data were collected from records of patients with edentulous atrophic maxillae, in good general health and who were rehabilitated by means of acrylic resin full-arch screw-retained prosthesis supported by at least one zygomatic implant, between the years of 2006-2017. (qxmd.com)
  • The sample comprised 66 patients in whom 171 zygomatic implants were placed to support maxillary screw-retained full-arch prostheses. (qxmd.com)
  • Click below for more resources on the AMS 700 Prosthesis for patients. (bostonscientific.com)
  • Impression making for completely edentulous patients is one of the critical factors in determining the success or failure of complete denture therapy. (psychosocial.com)
  • The patients were classified into three groups: primary prosthesis, primary prosthesis with a tibial stem, and revision prosthesis. (biomedcentral.com)
  • Primary prostheses with tibial stems provided higher stability, leading to a lower failure rate due to less risk of aseptic loosening in patients with tibial AORI grade 2a. (biomedcentral.com)
  • In our experience, we advise surgeons may try using primary prostheses in patients with tibial AORI grade 1 and primary prostheses with tibial stems in patients with tibial AORI grade 2a. (biomedcentral.com)
  • Materials and methods: In this randomized clinical trial, patients who needed at least three single crowns fixed partial prosthesis were included. (thejcdp.com)
  • Efficacy and risks of tooth-supported prostheses in the treatment of partially edentulous patients with stage IV periodontitis. (bvsalud.org)
  • The aim was to evaluate the efficacy and effectiveness of tooth -supported fixed prostheses in partially edentulous patients with stage IV periodontitis . (bvsalud.org)
  • No RCTs or CCTs compared the efficacy of tooth -supported fixed prostheses between patients with severe periodontitis or non- periodontitis patients . (bvsalud.org)
  • Tooth -supported fixed prostheses seemed to be a valid treatment approach to restore masticatory function in patients with stage IV periodontitis once periodontal therapy has been accomplished. (bvsalud.org)
  • This prosthesis is generally considered for patients who are significantly obese, who have limited manual dexterity, or in whom abdominal hardware such as reservoir balloons cannot be implanted (ie, patients undergoing extensive abdominal/perineal surgery and those receiving peritoneal dialysis). (medscape.com)
  • Two Finite Element models of the maxilla, implants, and prostheses were designed according to the All-on-4 ® concept. (researchsquare.com)
  • The one-piece dental implants can be concluded to induce less stress compared to the two piece dental implants when used in the All-on-4 ® implant supported prosthesis in the different lateral occlusal schemes. (researchsquare.com)
  • Although an attempt is generally made to salvage the prosthesis, removal may be warranted in cases where infection is recalcitrant or the implants are loose. (medscape.com)
  • The cumulative survival rate (CSR) for the implants and the prostheses was 70.4% and 79.8%, respectively. (kb.se)
  • Most of the failures happened within the first year after installation for both implants (52.1%) and prostheses (41.8%).Study II, a retrospective analysis, compared the clinical outcomes of implantsupported overdentures (ISODs) with either bar-clip or ball attachments. (kb.se)
  • The results showed that all ISOD failures resulted from loss of implants. (kb.se)
  • Initial costs, i.e., cost of prostheses at delivery, were higher for ISFAFDP 6 and ISFAFDP 4 due to the higher number of implants and higher cost of materials and fees. (kb.se)
  • 30-year outcomes of dental implants supporting mandibular fixed dental prostheses: a retrospective review of 4 cases. (thejcdp.com)
  • Implant loss was 4.33 more likely to occur when adverse events were recorded after the procedure of implant placement (P = 0.026) and 10.31 more likely to occur in implants that had their prosthesis repaired during follow-up visits (P = 0.004). (qxmd.com)
  • Mini implants should be considered for retaining overdenture prosthesis as an alternative treatment when standard implant placement is not possible. (nih.gov)
  • Endosseous dental implants are titanium fixtures that are placed in edentulous ridges to serve as support for fixed or removable dental prostheses used to restore dentition. (medscape.com)
  • Precise reproduction of an edentulous foundation is essential for removable prosthesis retention, stability, and support. (psychosocial.com)
  • In revisions, the 5-year survival of the cementless hip prosthesis improved over time: it was 85 (82-87)% in 1985-1989, 89 (88-91)% in 1990-1994 and 92 (88-95)% in 1995-1999. (nih.gov)
  • Factors influencing implant and prosthesis survival in zygomatic implant-supported fixed rehabilitation: a retrospective study. (qxmd.com)
  • Implant and prosthesis survival rates were calculated. (qxmd.com)
  • Implant and prosthesis survival rates of 94.15% and 92.4%, respectively, were observed in a mean of 3.6 years of follow-up (up to 11.7 years). (qxmd.com)
  • reported the long-term outcomes and failure modes of UKA, with a survival rate of 93% at 15 years and 90% at 20 years after UKA [ 9 ]. (biomedcentral.com)
  • This retrospective study reported the clinical outcomes of TKA after UKA failure at our institution and compared the pros and cons of primary prostheses, primary prostheses with tibial stems, and revision prostheses. (biomedcentral.com)
  • Use of a continuous positive airway pressure (CPAP) machine may have led a man's dental prosthesis to fail, highlighting this sleep apnea therapy as a possible high-risk factor for implant failure. (drbicuspid.com)
  • Dental biomaterials are commonly used for producing tooth-, implant- or mucosa-borne prosthesis. (uzh.ch)
  • Dental prosthesis. (bvsalud.org)
  • Dental restoration failure. (bvsalud.org)
  • The animation focuses on the cementless cobalt-chromium-molybdenum (CoCrMo) alloy prosthesis. (medivisuals.com)
  • Newer prosthesis is uncemented, comprises two or three modular components, and has improved outcomes. (hindawi.com)
  • The effect of shoulder prosthesis stem length on failure due to torsional loading. (escholarship.org)
  • The aim of this study was to evaluate the clinical outcomes of using a 3D-printed artificial vertebral body for spinal reconstruction after en bloc resection of thoracolumbar tumors. (thejns.org)
  • The following animation contains sequences that are intended to help support expert witness testimony regarding one of the causes of failure of certain types of knee prostheses (such as the Zimmer NexGen knee prosthetic). (medivisuals.com)
  • NTM prosthetic joint surgical site infections are associated with severe disease and require debridement, prosthesis excision, and prolonged administration of intravenous and broad spectrum antimicrobial drugs before prosthesis reimplantation ( 3 , 4 ). (cdc.gov)
  • In managing a septic prosthetic failure, the goals are to eradicate the infection and to provide a functional limb. (medscape.com)
  • Mechanisms of lead dysfunction included macrodislodgement (n = 4), surgical lead injury (n = 4), recall (n = 3), insulation failure (n = 8) or conductor fracture (n = 7), and alterations in the lead-myocardial interface (n = 12). (duke.edu)
  • However, revision surgery is required after UKA failure. (biomedcentral.com)
  • A total of 17 primary prostheses, 7 primary prostheses with tibial stems, and 9 revision prostheses were used. (biomedcentral.com)
  • According to literature review, various types of revision surgeries are performed for failed UKAs by using primary prostheses, primary prostheses with tibial stems, and revision prostheses [ 16 , 17 ]. (biomedcentral.com)
  • And we assumed that the infection rate after surgery with revision prostheses may be high because of the requirement for more surgical invasion. (biomedcentral.com)
  • We hypothesized that revision of UKA to TKA is possible and that primary prostheses with tibial stems exhibit a lower infection rate than revision prostheses and are more stable than primary prostheses. (biomedcentral.com)
  • One required open reduction with osteophyte removal, and one was converted to a resection arthroplasty (the ball of the shoulder or prosthesis is removed and this is considered salvage operation of failed shoulder replacement). (caringmedical.com)
  • Such infections can result from inoculation of the surgical field or prosthesis during a surgical or medical procedure or from environmental contamination during the early postoperative period ( 5 ). (cdc.gov)
  • The prosthesis can have a mechanically jointed "backbone" or have a malleable one that allows the phallus to be dressed in the upward or downward position. (medscape.com)
  • Diagram of tracheoesophageal puncture and prosthesis placement. (medscape.com)
  • [ 2 ] The surgical treatment of ED largely involves the placement of a penile prosthesis, although penile revascularization procedures have been described. (medscape.com)
  • This prosthesis is chosen for its simplicity of usage and durability due to fewer vital moving parts. (medscape.com)
  • En bloc resection was performed in all cases, based on the Weinstein-Boriani-Biagini surgical staging system, and anterior reconstruction was performed using a 3D-printed artificial vertebral body. (thejns.org)
  • The occurrence of post-surgical adverse events and need for laboratory repair of the prosthesis were found to be significant risk factors for implant loss. (qxmd.com)
  • Also easy removal and healing in case of failure with minimal surgical trauma. (nih.gov)
  • The overall objective of this proposed program is the U.S. clinical introduction of the Impella RP system, a percutaneously introduced ventricular assist device (VAD) for treatment of acute right heart failure. (inknowvation.com)
  • This chest radiograph shows an enlarged cardiac silhouette and edema at the lung bases, signs of acute heart failure. (medscape.com)
  • [ 63 ] In general, it appears that the longer that the infection has been present in the hip, the more difficult it is to eradicate it without removal of the prosthesis. (medscape.com)
  • The low incidence of prosthesis subsidence of 3D-printed endoprostheses can provide good stability instantly. (thejns.org)
  • retrieved prosthesis analysis and evaluation of the reason for failure. (ior.it)
  • Participants who complete this course will learn about the identification, evaluation, and assessment of geriatric failure to thrive, including use of the Mini Nutritional Assessment, the Mini Mental Status Evaluation, and the Geriatric Depression Scale. (netce.com)
  • Pulpal evaluation of teeth restored with fixed prostheses. (thejcdp.com)
  • Right ventricular failure that does not respond to medication is treated with mechanical circulatory support in the form of a right ventricular assist device (RVAD). (inknowvation.com)
  • Oral anticoagulation with a VKA should be given to those with rheumatic MS or a mechanical prosthesis and AF. (medscape.com)
  • Mechanical rods: Dura II (AMS [formerly produced by Timm Medical Technologies]) prostheses have a series of polyethylene segments that articulate in a ball and socket arrangement and are held in place by a central spring. (medscape.com)
  • The fibrous pseudocapsule enclosing the ring was divided, and the prosthesis was removed from around the esophagus. (sages.org)
  • The use of prosthesis in a patient living with diabetes increases the cardiac strain to over 15%, leading to cardiac failure over a period of time. (theseoultimes.com)
  • World statistics show that when walking even with the best of prosthesis, mortality at 5 years after unilateral below knee amputation is 50%, and there is 50% mortality after above knee amputation in 3 years, due to cardiac failure. (theseoultimes.com)
  • Geriatric failure to thrive is a diagnosis commonly used in geriatrics, and the four chief characteristics are impaired physical function, malnutrition, depression, and cognitive impairment. (netce.com)
  • Previous implant loss was significantly associated with prosthesis loss. (qxmd.com)
  • The most fundamentally basic prosthesis is the semirigid rod prosthesis, which consists of 2 rodlike cylinders that are implanted in the corpora cavernosa. (medscape.com)
  • The Framingham criteria for the diagnosis of heart failure consists of the concurrent presence of either 2 major criteria or 1 major and 2 minor criteria. (medscape.com)
  • However, except for AIMS, PMMA Replacement Prosthesis has probably never been used by any other major diabetic foot centre in the world for the replacement of destroyed foot and ankle bones. (theseoultimes.com)
  • This study analyzed the clinical results of different types of prostheses used in treating failed UKA. (biomedcentral.com)
  • CUSUM analysis showed that failure rates diminished rapidly after 16 cases and reached an acceptable rate after 29 cases. (springer.com)
  • Several days after surgery, a one-way valved prosthesis is placed in the puncture tract, allowing lung air to pass into the esophagus. (medscape.com)
  • The doughnut-like-shaped prosthesis is made of an elastomer shell filled with a silicone gel. (sages.org)
  • Prophylactic antibiotics may be added when the prosthesis is made for replacing the non-infected, destroyed bones of a Charcot foot. (theseoultimes.com)
  • The transmucosal abutment is the link between the implant body and the prosthesis, usually made of titanium. (medscape.com)
  • This application addresses broad Challenge Area (04) Clinical Research and Specific Challenge Topic 04-HL-110 Treatment of pulmonary hypertension and right heart failure. (inknowvation.com)
  • of heart Failure Treatment study. (qxmd.com)
  • Investigators are increasingly reporting protocols designed to promote shortened treatment periods for implant-supported prostheses. (allenpress.com)