Method: The cooperation was conducted to 20 cases of patients with different bone tumors undergoing various limb salvage operation.
方法：对20例骨肿瘤患者多种不同保肢术进行手术配合。
Objective To explore the limb salvage operation of osteosarcoma in children.
目的探讨儿童骨肉瘤保肢手术的治疗方法。
Objective to investigate the application of free flap to repair the skin defect in the limb salvage operation of malignant tumor of lower extremity.
目的：探讨游离皮瓣在小腿恶性肿瘤保肢术中应用的优越性。
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