方法对6例浮动膝损伤的患者均行同侧股骨和胫骨带锁髓内钉的骨固定手术，并对合并症的治疗进行分析、总结。

Methods Internal fixation with the interlocking nail in unilateral femur and tibia was performed on 6 patients with the floating knee, and the treatments of complications were analyzed and summarized.

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背景：股骨头坏死的传统治疗方法首先要进行病灶清除，这个过程手术时间长，很难彻底清除病灶且容易损伤正常骨组织。

BACKGROUND: Traditional treatment for femoral head necrosis is debridement surgery. This surgery is difficult to clear the lesions completely and easy to damage the normal tissue.

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