Osteonecrosis – “death of bone” occurs when an area of bone loses its blood supply
90% of all Osteonecrosis cases affect the hip, but the knee and ankle joints can also be affected in adults. It affects mostly males between the ages of 20 and 40. Corticosteriods, severe injury or fracture, excessive alcohol use, kidney disease, lupus, and blood disorders are all risk factors for developing Osteonecrosis.