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The procedure is performed by removing the head of the femur and replacing it with a metal or composite prosthesis. The most commonly used prosthesis designs are the Austin Moore and Thompson prostheses. A composite of metal and HDPE that forms two interphases (bipolar prosthesis) can be used.
Hip protectors are most commonly used in elderly individuals who have a high risk of falls and hip fractures (for example, due to history of a previous fall and underlying osteoporosis). [1] Most hip fractures follow an impact due to a lateral fall. [2]
Hip replacement can be performed as a total replacement or a hemi (half) replacement. A total hip replacement consists of replacing both the acetabulum and the femoral head while hemiarthroplasty generally only replaces the femoral head. Hip replacement is currently the most common orthopaedic operation, though patient satisfaction short- and ...
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]
Highly cross-linked UHMWPE materials were clinically introduced in 1998 and have rapidly become the standard of care for total hip replacements, at least in the United States. These new materials are cross-linked with gamma or electron beam radiation (50–105 kGy) and then thermally processed to improve their oxidation resistance.
In elderly patients with displaced or intracapsular fractures surgeons may decide to perform a hemiarthroplasty, replacing the broken part of the bone with a metal implant. However, in elderly people who are medically well and still active, a total hip replacement may be indicated. Independently mobile older adults with hip fractures may ...