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The hip is a ball-and-socket joint that allows the leg to move in a variety of positions. The femoral head (ball) rides in the acetabulum (socket). The joint is lined with a lubricating tissue called cartilage, which cushions the joint as it moves and bears weight.
Osteoarthritis, the most common form of arthritis, is a wear and tear condition that destroys joint cartilage, and it typically develops after years of constant motion and pressure in the joints. As the cartilage continues to wear away, bone begins to rub against bone, causing the irritation, swelling, stiffness, and discomfort commonly associated with arthritis. |
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Hip replacement surgery removes the arthritic ball of the upper femur (thighbone) as well as the damaged bone and cartilage from the hip socket. The damaged bone and cartilage are replaced with implants made from materials including metal alloys, polyethylene (plastic), or ceramic.
The implants are designed to create a new, smoothly functioning joint that replaces painful bone-on-bone contact.
If you have difficulty walking or performing everyday activities such as getting dressed, it may be time to consider hip replacement surgery.
Doctors generally try to delay total hip replacement for as long as possible in favor of less invasive treatments. However in patients with advanced joint disease, hip replacement offers the chance for relief from pain and a return to normal activities.
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