Method The histological and ultrastructural changes of steroid and horse serum induced femoral head osteonecrosis were observed in adult rabbits.

• 方法采用马血清和大剂量肾上腺糖皮质激素(氟美松)诱发成年兔股骨头坏死,应用光镜、电镜观察组织学及超微结构变化。