B2组行双侧股骨头多孔髓芯减压术治疗，B1组未进行任何治疗处理。
The multiple core decompression was performed bilaterally in group B2. Group B1 had no treatment.
目的探讨股骨头髓心减压带旋髂深血管蒂髂骨骨瓣植骨术治疗股骨头缺血坏死的疗效及手术适应证。
Objective To evaluate the indications for vascularized iliac bone grafting in the treatment of osteonecrosis of the femoral head and operative results.
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