Replacement of a failed knee prosthesis.
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Revision Knee Replacement
Revision of a knee replacement is performed when the original prosthesis has become loose, worn, or infected. This procedure can be more complex than a primary replacement.
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Revision knee replacement surgery involves replacing part or all of a previous knee prosthesis with a new one. This is necessary when an initial total knee replacement surgery fails for various reasons.
Indications and Surgical Procedure
The surgery may be advised if a patient experiences trauma to the knee, chronic joint disease, increased pain, a worn-out prosthesis, knee instability, a feeling of "giving way," loosening of the prosthesis, infection, weakening of the bone around the replacement (osteolysis), knee stiffness, leg length discrepancy, or a fracture. The surgery is performed under general anesthesia. The surgeon makes an incision over the knee, exposes the joint, and removes the old components. Damaged bone may be removed and replaced with a bone graft or a metal wedge. New components are then secured with bone cement.