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目的:分析内踝支撑钢板内固定治疗Lauge-Hansen旋后-内收型Ⅱ度踝关节骨折的临床效果。方法:回顾性分析济源市人民医院2016年1月至2018年12月收治的81例Lauge-Hansen旋后-内收型Ⅱ度踝关节骨折患者的临床资料。根据手术方式将纳入患者分为内踝支撑钢板内固定组43例和螺钉固定组38例。比较两组患者的手术成功率、临床疗效、术后并发症发生情况、骨折愈合时间、恢复完全负重时间、视觉模拟评分法(VAS)评分、美国矫形外科足踝协会(AOFAS)评分。结果:术后随访18个月，复查踝关节，结果显示，内踝支撑钢板内固定组手术成功率(97.67%，42/43)高于螺钉固定组(86.84%，33/38)，n P0.05)；内踝支撑钢板内固定组恢复完全负重时间[(10.87±1.26)周]少于螺钉固定组[(12.31±1.32)周]，n P0.05)；术后18个月，两组VAS评分均降低，AOFAS评分均升高(n P均0.05). The recovery time of complete weight-bearing in medial malleolus support plate internal fixation group was (10.87±1.26)weeks, which was less than (12.31±1.32)weeks in screw fixation group (n P0.05). Compared with preoperative scores, the VAS score was significantly reduced, and the AOFAS score was significantly increased 18 months after operation in the two group (n P<0.05). VAS score of medial malleolus support plate internal fixation group was lower, and AOFAS score was higher 18 months after operation, compared with those of screw fixation group (n P<0.05).n Conclusions:The medial malleolus support plate, in the treatment of Lauge-Hansen supination-adduction type Ⅱ ankle fractures, has good effects, high success rates and short recovery time, which is safe and effective.