
TOTAL HIP REPLACEMENT
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Normal Hip—The hip is a ball-in-socket joint. The space between the ball and the socket is cartilage that lines the joint and provides smooth, pain-free movement. |
Arthritic Hip—The bone quality is preserved but the joint space is absent due to the erosive changes caused by arthritis. The bone rubs on bone and this causes the patient severe pain. Every movement of the hip makes this pain worse. Eventually movement becomes restricted. |
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| Replaced Hip, Cementless Technique—Total hip replacement has been performed, removing the arthritic surfaces and replacing them with new metal and plastic implants. This relieves the pain that the patient experiences. The prosthesis is attached using a technique where bone grows into the textured metal surfaces. This requires good bone quality. The recovery is slightly slower than with cement. | Replaced Hip, Hybrid Cemented Technique— A similar replacement has been performed with the socket being replaced without cement but the ball (femoral component) is attached with cement. New and improved cement techniques have led to excellent results with this approach to total hip replacement. |