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Avascular necrosis

Avascular necrosis, often referred to as osteonecrosis, literally means, “dead bone.” This condition is a form of arthritis in which the ball of the hip joint, femoral head, is affected by avascular necrosis. This leads to the development of arthritis in the joint. Cells in the bone and bone marrow begin to die from a decrease in blood supply to the femoral head. This decrease in circulation causes the bone to weaken, die and finally collapse. Avascular necrosis most often occurs in younger and middle-aged adults and usually affects the large weight-bearing joints of the hips and knees, but may also affect the shoulders.

Fractures and dislocations of the hip can produce avascular necrosis if the arteries that supply blood to this area are damaged. Avascular necrosis can also occur from blockage in blood vessels caused by sickle cell anemia, abnormal red blood cells and fat particles. Alcoholism and large doses of steroids are other factors that increase your risk of developing avascular necrosis.

Please discuss nutrition, medication and treatment options with your doctor to make sure you are getting the proper care for your particular situation.  The information on this site does not replace your doctor's specific instructions.