In the final stages of the disease the affected area usually collapses leading to intense pain and immobility. Major risk factors -Displaced femoral neck fractures and dislocations of the hip are the most common causes of Aseptic Necrosis. Chronic Alcoholism, long-term corticosteroid use, sickle cell disease, coagulopathies, systemic lupus erythematosus, vasculitis, hyperlipidemia, decompression sickness, gaucher's disease, smoking, metabolic bone disease, pregnancy, blood coagulation disorders, chronic liver disease, radiation and chemotherapy. Later-pain, stiffness, a limp and a decrease in range of motion. The pain is usually in the groin and thigh.
Laboratory tests are of limited value, used to rule out other conditions.
Treatment - No method of treatment for aseptic necrosis of the femoral head is completely satisfactory. Surgical management includes bone grafting, core decompression and lastly, total hip replacement. Osteonecrosis of the Femoral Head. Osteonecrosis of the Femoral Headin Patients With Inflammatory Arthritis or Asthma Receiving Corticosteroid Therapy. Journal of Musculoskeletal Medicine .13-25.