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目的:探讨分析同种异体半关节移植治疗下肢关节端骨肿瘤的疗效。方法:对23例下肢累及关节端骨肿瘤,术前根据X线、CT或MRI测量肿瘤的长短和范围,选取匹配的异体半关节及固定材料,行关节端骨肿瘤切除及同种异体半关节移植修复骨缺损术,术后X线评定骨愈合,并评估其功能恢复情况。结果:手术后6～9个月在X线片显示移植骨与正常骨组织结合部间隙消失,或间隙模糊且有足够骨痂形成,可放弃支具独立行走;术后约10～12月取出内固定材料,约14月后功能活动逐渐恢复正常。结论:同种异体半关节移植治疗下肢关节端骨肿瘤切除后骨缺损是一种切实可行的有效方法。
Objective: To investigate the curative effect of allogeneic hemiarthroplasty in the treatment of lower extremity joint bone tumors. Methods: Twenty-three patients with lower extremity involved in the treatment of arthroplasty were treated with X-ray, CT or MRI to measure the length and range of the tumor. The matched allogeneic joints and fixed materials were selected for resection of the articular bone and the allogeneic half-joint Transplanted bone defect repair, postoperative X-ray assessment of bone healing, and evaluate the functional recovery. Results: Six months to nine months after operation, the X-ray showed the disappearance of the junction between the graft and the normal bone or the gap was blurred and enough callus was formed. Internal fixation material, about 14 months after functional activity gradually returned to normal. CONCLUSION: Allograft hemiarthroplasty is a feasible and effective method for the treatment of bone defect after resection of the lower extremity articular bone.