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Total Hip Replacement

Content Contributor

Evolution of Total Hip Replacement

Total Hip and knee replacement surgeries have been performed for over a century, with continued evolution to the surgical techniques as well as component and manufacturing techonologies . Currently the most common material used for hip replacement implants are various metal alloys that include titanium, cobalt-chrome, as well as high grade plastics known as high molecular weight polyethylene or simply “poly”.

Most systems consist of three parts, the femoral component which replaces the native femoral head and neck, the acetabular component which replaces the acetabulum or “socket” portion of the ball and socket hip joint, and the poly which rests between these two component and acts as the new cartilage or bearing surfaceto allow for fluid motion. Many different companies produce components used in total hip replacement and all of the currently used implants have been extensively studied and approved to be safe for use by the US Food and Drug Administration.

Regardless of the implant chosen by the surgeon, todays implants and materials are at their pinnacle, due to the continued improvements in technology and material properties . The current implants demonstrate improved wear rates, longer survivorship, higher success rates, more anatomic designs, and decreased need for revision surgery due to wear than ever before

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