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Hip replacement. Hip replacement is a surgical procedure in which the hip joint is replaced by a prosthetic implant, that is, a hip prosthesis. Hip replacement surgery can be performed as a total replacement or a hemi/semi (half) replacement. Such joint replacement orthopaedic surgery is generally conducted to relieve arthritis pain or in some ...
Bone cement is considered a reliable anchorage material with its ease of use in clinical practice and particularly because of its proven long survival rate with cemented-in prostheses. Hip and knee registers for artificial joint replacements such as those in Sweden and Norway [2] clearly demonstrate the advantages of cemented-in anchorage.
Hip resurfacing has been developed as a surgical alternative to total hip replacement (THR). The procedure consists of placing a cap (usually made of cobalt-chrome metal), which is hollow and shaped like a mushroom, over the head of the femur while a matching metal cup (similar to what is used with a THR) is placed in the acetabulum ( pelvis ...
Eponymous implants and their uses. Austin-Moore prosthesis for fracture of the neck of the femur [13] Baksi's prosthesis for elbow replacement [14] Charnley prosthesis for total hip replacement [15] Condylar blade plate for condylar fractures of the femur [16] Ender's nail for fixing intertrochanteric fracture [17]
Materials. Some ceramic materials commonly used in joint replacement are alumina (Al 2 O 3 ), zirconia (ZrO 2 ), silica (SiO 2 ), hydroxyapatite (Ca 10 (PO 4) 6 (OH) 2 ), titanium nitride (TiN), silicon nitride (Si 3 N 4 ).
For the last 45 years, [when?] the most successful and common form of arthroplasty is the surgical replacement of arthritic or destructive or necrotic joint or joint surface with a prosthesis. [ medical citation needed ] For example, a hip joint that is affected by osteoarthritis may be replaced entirely ( total hip arthroplasty ) with a ...
A titanium hip prosthesis, with a ceramic head and polyethylene acetabular cup. Ceramics are now commonly used in the medical fields as dental and bone implants. Surgical cermets are used regularly. Joint replacements are commonly coated with bioceramic materials to reduce wear and inflammatory response.
Stress shielding is the reduction in bone density ( osteopenia) as a result of removal of typical stress from the bone by an implant (for instance, the femoral component of a hip prosthesis ). [1] This is because by Wolff's law, [2] bone in a healthy person or animal remodels in response to the loads it is placed under.
The modified posterior MIS approach to hip resurfacing and total hip arthroplasty (hip replacement) displays a host of advantages to the patient: Less post-operative pain; Less soft tissue damage and pressure on muscle fibres. Shorter hospital stay; Lower blood loss; Smaller incision; Quicker return to work and functional activities
Prosthetic raw materials. Prosthetic are made lightweight for better convenience for the amputee. Some of these materials include: Plastics: Polyethylene; Polypropylene; Acrylics; Polyurethane; Wood (early prosthetics) Rubber (early prosthetics) Lightweight metals: Titanium; Aluminum; Composites: Carbon fiber reinforced polymers