Avascular necrosis of femoral head becomes more common in orthopedics and tends to occur in young patients due to the development of modernization and more contact with various inducers. The hippreserving treatment is the main approach for patients with earlystage necrosis or young patients. This treatment includes drug treatment, surgical treatment and physical treatment. Appropriate application of hippreserving treatment can improve the patient′s condition as early as possible, relieve the pain and avoid hip arthroplasty.

• ref