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探讨应用现代技术保存肿瘤肢体。方法：采用肿瘤段切除＋体外灭活再植，同种异体半关节移植，带血管蒂髂骨瓣折叠再造三种方法保肢。结果：手术切口Ｉ期愈合，并节功能半年后恢复。２例股骨远段成骨肉瘤分别于１年７个月和２年１个月死于肺转移。１例胫骨近段软骨肉瘤术后三月复发行截肢术，１例肱骨近段成骨肉瘤术后四年仍存活，肩关节功能外展达８０°结论：保肢手术为目前治疗恶性骨肿瘤主要术式，但应严格掌握适应证，选择适当灭活方式和重建方法。化疗是保肢手术的重要前提和术后生存的保障。
Explore the use of modern technologies to preserve tumor limbs. Methods: The tumors were resected with tumor resection + in vitro replantation, allograft hemiarthroplasty, and vascularized iliac flap reconstruction. RESULTS: The surgical incision healed by first intention and recovered after half a year. Two cases of distal femur osteosarcoma died of lung metastasis at 1 year 7 months and 2 years 1 month. One case of chondrosarcoma of the proximal humerus was treated with amputation three months after operation, and one case of osteosarcoma of the proximal humerus survived for four years after surgery. The shoulder function reached an outreach of 80°. Conclusion: Limb salvage is the treatment of malignant bone tumors. The main surgical method, but should strictly grasp the indications, select the appropriate method of inactivation and reconstruction methods. Chemotherapy is an important prerequisite for limb salvage surgery and the protection of postoperative survival.