人工肘关节置换术治疗复杂肱骨远端骨折

目的 探讨人工肘关节置换术治疗复杂肱骨远端骨折的意义.方法 2005年5月至2008年10月对12例新鲜肱骨远端骨折接受肘关节置换术的患者进行临床随访.患者平均年龄60岁,平均随访时间12个月.骨折按照AO分型,C2型3例,C3型9例.关节假体均为半限制型Coonrad-Morrey假体.随访内容包括疼痛评估,关节活动度、稳定性检查和肌力检查,并发症检查,Mayo肘关节评分,上肢失能评分(DASH评分),放射学评估,有无假体松动和异位骨化.结果 2例患者有轻度疼痛.平均屈曲98.3°,平均伸直受限17.9°,平均旋前82.9°,平均旋后70.8°.12例患者肘关节检查均为稳定的关节.患者对治疗结果均满意.1例伤口不愈合,2例有尺神经症状.1例肘关节屈伸肌力Ⅳ级.未发现异位骨化和假体松动.Mayo肘关节评分优3例,良9例.DASH评分平均41.3分(25～75分).结论 对于严重骨质疏松、骨折粉碎严重而内固定不能获得稳定固定、关节面严重破坏(骨折或者关节炎病变)预计会发展为创伤性或炎症性关节炎的病例进行肘关节置换可以获得良好功能.

Clinical outcomes of total elbow replacement in the treatment of complex distal humeral fractures

Objective To discuss the efficacy of total elbow replacement in the treatment of complex distal humeral fractures. Methods From May 2005 to October 2008 12 patients were retrospectively studied who were diagnosed complex fractures of the distal humerus and treated by total elbow replacement (Coonrad-Marrey). The mean age was 60 years old, the mean follow-up time was 12 months. According to AO classification, there was 3 C2 and 9 C3. The study included: pain evaluation, range of motion, elbow stability, muscle strength, complications, Mayo elbow score, DASH score, radiological assessment of ectopic bone formation and loosening. Results Two cases with mild pain. The mean flexion is 98.3°,extension limit is 17.9°, mean pronation is 82. 9° and supinafion is 70.8°. All joints were stable postoperatively. All patients were satisfied with the outcome. There was 1 case of superficial soft tissue nonbealing and 2 cases of ulnar nerve symptoms. No eetopie bone formation or loosening was found. Mayo elbow score was 3 cases of excellent and 9 cases of good. The mean DASH score was 41.3. Conclusion Total elbow replacement can be used in such conditions as severe osteoporosis, severe cominution that internal plates can not get stable fixation, severe cartilage damage (because of fracture or inflammatory arthritis) that indicate traumatic or inflammatory arthritis.