桡骨远端瘤段切除后单纯自体腓骨移植与吻合血管腓骨移植重建桡腕关节疗效比较

目的分析单纯自体腓骨移植与吻合血管腓骨移植在桡骨远端瘤段切除后修复桡骨远端缺损和重建桡腕关节远期效果.方法 1979年1月～2002年9月对15例桡骨远端肿瘤患者行瘤段切除后,6例行单纯自体腓骨移植,9例行吻合血管腓骨移植重建桡腕关节.随访1年,参照Enneking系统及国际肢体修复讨论会所制定的同种/带血管蒂骨移植的影像学评价方法,进行肢体功能、影像学及供区的功能评价.结果 8例吻合血管腓骨移植恢复肢体功能的80%,6个月内完成骨愈合;6例单纯自体腓骨移植恢复肢体功能的67%,其中4例移植骨在5 cm以内术后6个月骨愈合可,2例骨移植超过12 cm者愈合延迟,分别为13个月和16个月;1例术后2个月行肘下截肢术.结论应用腓骨头替代桡骨远端重建腕关节是合适的;吻合血管腓骨移植重建桡腕关节不受骨缺损长度影响,且植骨愈合率高、时间短,无骨吸收.可作为桡骨远端肿瘤手术治疗的一种有效手段.

LIMB SALVAGE SURGERY FOR WRIST IN BONE TUMOR BY USING FREE VASCULARISED FIBULAR GRAFT WITH FIBULAR HEAD OR SIMPLE FIBULAR GRAFT

OBJECTIVE: To compare the long-term results of vascularised fibular graft and simple autologous fibular graft for reconstruction of wrist after distal bone tumor resection. METHODS: From January 1979 to September 2002, 15 patients with wrist defects due to distal bone tumor resection were treated with vascularised fibular graft or simple autologous fibular graft and followed up 1 year. The results were graded with Enneking's system and evaluated radiographically according to the "International Symposium on Limb Salvage". The grade system included limb function, radiological examination and the function of ankle. RESULTS: The limb function of 8 patients with vascularised fibular graft restored to 80% of normal function and the bone union was achieved within 6 months. The limb function of 6 patients with simple autologous fibular graft restored to 67% of normal function. The bony union was achieved within 6 months in 4 cases with the bone graft less than 5 cm and in the 13th and 16th months in 2 cases with the bone graft more than 12 cm. CONCLUSION: It is suitable to use the head of fibular bone as a substitute for the distal radius. The healing of vascularised fibular graft is very quick and haven't the bone resorption. So in the procedure for reconstruction and limb salvage after bone tumor resection of distal radius, the free vascularised fibular graft with fibular head is an ideal substitute.