Total Hip Replacement

Dr. Alexander Featured on News 12 NJ to discuss Advances in Hip Replacement Surgery

Learn About Hip Replacements:

The hip is a ball and socket joint which connects the pelvis bone and the top of the femur (thigh bone). The socket is cushioned by cartilage that enables the joint to move free and easy.

The procedure involves removing the damaged bone and cartilage and replacing it with prosthetic materials.

– The damaged femoral head is removed and replaced with a metal stem that is placed into the center of the femoral stem is cemented or pressed into the bone.

– A metal or ceramic ball is placed on the upper part of the stem. This ball replaces the damaged femoral head that was removed.

– The damaged cartilage surface of the socket is removed and replaced with a metal socket. Screws or cement are sometimes used to hold the socket    in place.

– A  ceramic, or metal spacer is inserted between the new ball and the socket to allow for a smooth gliding surface.

The most common causes of chronic hip pain include:

-Osteoarthritis- This is an age-related type of arthritis that comes from wear and tear. It usually occurs in people 50 years of age and older and often in individuals with a family history  of arthritis. The cartilage cushioning the bones of the hip wears away. The bone-on-bone contact causes hip pain and stiffness.

-Rheumatoid arthritis- This is an autoimmune disease in which the synovial membrane becomes inflamed and thickened. This chronic inflammation can damage the cartilage, leading to pain and stiffness.

-Post-traumatic arthritis- This can follow a serious hip injury or fracture. The cartilage may become damaged and lead to hip pain and stiffness over time.

-Avascular necrosis- An injury to the hip, such as a dislocation or fracture, may limit the blood supply to the femoral head. The lack of blood may cause the surface of the bone to collapse, and arthritis will result. Some diseases can also cause avascular necrosis.

-Childhood hip disease- Some infants and children have hip problems. Even though the problems are successfully treated during childhood, they may still cause arthritis later on in life. This happens because the hip may not grow normally, and the joint surfaces are affected.