Total joint replacements are generally used to reduce the pain and immobility associated with severe, debilitating osteoarthritis or traumatic injury of the knee or hip, which can limit everyday activities.
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Knee joint replacement is surgery to replace a painful, damaged, or diseased knee joint with an artificial joint (prosthesis). Alternative names include total knee replacement, knee arthoplasty, and total knee replacement. The surgery is performed under general anesthesia.
The orthopedic surgeon makes a surgical cut over the affected knee. The kneecap (patella) is moved out of the way, and the ends of the thigh bone (femur) and shin bone (tibia) are cut to fit the prosthesis. The undersurface of the kneecap is cut to allow the surgeon to place an artificial piece.
The four parts of the prosthesis are fixed onto the ends of the femur, tibia, and undersurface of the patella with or without bone cement. Usually, metal is used on the end of the femur, and plastic is used on the tibia and patella for the new knee surface. The prosthesis includes the:
- Patella components