Osteonecrosis of the hip, also known as avascular necrosis of the hip, is a medical condition where the blood supply to the femoral head (the ball-shaped top of the thigh bone that fits into the hip socket) is disrupted. This lack of blood flow can lead to the death of bone tissue, causing pain, joint deterioration, and potential hip joint collapse over time. It can be caused by various factors, including trauma, long-term use of corticosteroid medications, excessive alcohol consumption, or certain medical conditions. #avn #osteonecrosis #avascularnecrosis #hippain #hipinjury #hipsurgery #orthopedicsurgeon