Results There was active bone formation in the experimental group.The new bone was arranged into bone trabeculae, most of which were covered by a monolayer of osteoblasts.

• 结果实验组缺血坏死的股骨头内有大量新骨形成，新生骨质呈小梁状排列，小梁表面常有单层的成骨细胞覆盖，提示新骨形成活跃；