?:definition
|
-
Implantable prostheses designed for total or partial replacement of the hip joint. Partial hip prostheses typically consist of either a femoral component (consisting of a metal stem inserted into the marrow cavity of the femoral bone that ends with a neck where a metal ball component is attached, intended to replace the femoral head) or an acetabular component (consisting of a metal [e.g., cobalt-chromium alloy] or plastic cup-like component that is implanted into the acetabulum). Total hip joint prostheses typically consist of a combination of both femoral and acetabular components. Hip joint prostheses may be intended for implantation with or without bone cement; they are used mainly in patients who have congenital abnormalities or who suffer from osteoarthritis or rheumatoid arthritis, as well as after trauma.
|