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What are joint replacement implants?

Joint replacement implants are artificial joints that replace natural joints damaged by osteoarthritis. Replacement joints are usually made from very strong, durable materials such as titanium and polyethylene. They're designed to last for many years. Joint replacement implants can be used to replace knees, hips, elbows, shoulders, wrists, and even fingers.
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Robert J. Otto, MD
Orthopedic Surgery
Joint replacement implants are the materials that replace a damaged joint surface.  In the knee, metal caps are attached to the ends of the bone and a hard plastic piece between them acts as new cartilage. In a hip, a metal shell is placed inside the hip socket with a plastic liner.  A stem is placed inside the top of the thigh bone (femur) with a metal or ceramic ball attached on top.  The ball and plastic liner becomes the new ball and socket joint of the hip.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.