目的 :分析恶性骨肿瘤保肢术并发症发生的原因及其治疗。方法 :我院 7年半间对 86例恶性骨肿瘤行保肢术 ,其中 2 2例出现了不同的并发症 ,同期收治外院资料完整的保肢术并发症患者 8例。男 2 2例 ,女 8例。年龄平均2 3 .5岁。部位 :胫骨上端 12例 ,腓骨上端 4例 ,股骨下端 9例 ,尺骨远端、肱骨近端、桡骨远端、胫骨远端、髂骨各 1例。骨肉瘤 18例 ,骨巨细胞瘤 7例 ,软骨肉瘤 2例 ,皮质旁骨肉瘤、骨纤维肉瘤和恶性纤维组织细胞瘤各 1例。复发 18例 ,切口感染和延迟愈合 7例 ,神经损伤 5例 ,异体骨或灭活骨骨折 5例。结果 :除 4例拒绝治疗外 ,13例行截肢或关节离断术 ,4例行扩大切除术 ,肌皮瓣转位术和人工关节置换术各 2例 ,清创缝合术 ,石膏外固定及切开复位内固定术各 1例。另 2例神经损伤患者未予处理。 2 1例获得平均 2 0 .2月的随访 (3月～ 6年 ) ,4例死亡 ,3例带瘤生存 ,余 14例无异常。结论 :术后复发与术中切除不彻底 ,种植和治疗不当有关 ;切口感染和延迟愈合多发生于胫骨上端 ;神经损伤除与手术有关外 ,还与放疗不当有关 ;异体骨或灭活骨骨折多发生于术后 2～ 12月。对于出现并发症的患者应该根据不同的情况采取不同的治疗方法 Objective : To analyze the causes and treatment of limb complications of malignant bone tumors. Methods: Eighty-six cases of malignant bone tumors were performed in our hospital for 7 and a half years. Among them, 22 cases had different complications. During the same period, 8 cases were treated with limb salvage complications in the hospital. There were 22 males and 8 females. The average age is 23.5 years old. Site: 12 cases of upper humerus, 4 cases of upper humerus, 9 cases of lower femur, 1 case of distal ulna, proximal humerus, distal humerus, distal humerus, and sacrum. There were 18 cases of osteosarcoma, 7 cases of giant cell tumor of bone, 2 cases of chondrosarcoma, 1 case of paracortical osteosarcoma, 1 case of osteosarcoma, and 1 case of malignant fibrous histiocytoma. There were 18 cases of recurrence, incision infection and delayed healing in 7 cases, nerve injury in 5 cases, allograft or inactivated bone fracture in 5 cases. RESULTS: Except for 4 cases who refused treatment, 13 cases underwent amputation or disarticulation, 4 cases underwent extended resection, 2 cases of myocutaneous flap transposition and total hip arthroplasty, debridement and suture, and plaster external fixation. One case of open reduction and internal fixation was performed. The other 2 patients with nerve injury were not treated. Twenty-one patients were followed up for an average of 20.2 months (3 months to 6 years). 4 patients died, 3 patients survived with tumors, and 14 patients had no abnormalities. Conclusions: Postoperative recurrence is not completely related to intraoperative resection. Implantation is not related to proper treatment. Incisional infection and delayed healing occur at the upper end of the sacrum. Neurological injury is not only related to surgery, but also related to improper radiotherapy. Allograft or inactivated bone fractures. Occurred in 2 to 12 months after surgery. For patients with complications, different treatments should be taken according to different conditions