Osteonecrosis of the hip is a painful condition that occurs when the blood supply to the head of the femur (thighbone) is disrupted. Because bone cells need a steady supply of blood to stay healthy, osteonecrosis can ultimately lead to destruction of the hip joint and severe arthritis. Although nonsurgical treatment options may be effective in some cases, the more severe cases require surgical treatment.
Snapping hip is a condition in which you feel a snapping sensation or hear a popping sound in your hip when you walk, get up from a chair, or swing your leg around. Although snapping hip is usually painless and harmless, the sensation can be annoying. In some cases, snapping hip leads to bursitis, a painful swelling of the fluid-filled sacs that cushion the hip joint. If you have hip bursitis, your doctor may recommend an injection of a corticosteroid into the bursa to reduce painful inflammation. In the rare instances that snapping hip does not respond to conservative treatment, your doctor may recommend surgery. The type of surgery will depend on the cause of the snapping hip.