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目的 探讨小切口同种异体肌腱重建外踝韧带治疗慢性踝关节不稳定的临床效果.方法 随机选取2017年7月至2018年6月采用小切口同种异体肌腱重建外踝韧带治疗的慢性踝关节不稳定患者15例,男10例,女5例,年龄30～75岁.回顾性分析15例患者手术资料,统计手术时间、住院时间、手术费用,手术前后视觉模拟 (VAS) 评分、踝与后足功能 (AOFAS) 评分、关节功能 (IKDC) 评分、距骨倾斜角以及距骨迁移距离,评估治疗效果.结果 15例患者治疗总有效率为86.67％,手术时间 (65.36±8.12) min,住院时间 (7.46±1.13) d,手术费用 (4.85±0.36) 万元.与术前比较,15例患者术后VAS评分降低,AOFAS评分、IKDC评分升高,距骨倾斜角改善,距骨迁移距离缩短 (P均＜0.05).结论 对慢性踝关节不稳定患者行小切口同种异体肌腱重建外踝韧带治疗,可提高治疗效果,缩短手术时间、住院时间及距骨迁移距离,减少手术费用,降低VAS评分,升高AOFAS评分以及IKDC评分,改善距骨倾斜角.“,”Objective To investigate the clinical effect of small incision allograft tendon reconstruction of lateral malleolus ligament on chronic ankle instability. Methods Fifteen patients with small incision allogeneic tendon reconstruction of the external ankle ligament treatment of chronic ankle instability were randomly selected from July 2017 to June 2018, there were 10 cases of males, and 5 cases of females, aged 30 ～ 75 years old. The surgical data of the 15 cases was retrospective analyzed. The operation time, length of stay, operation cost, preoperative VAS score, Aofas score, IKDC score, tilt angle of talus and distance from bone migration, and the therapeutic effect was evaluated. Results The total effective rate of the 15 patients was 86.67％, the operation time was (65.36 ± 8.12) min, the time of hospitalization was (7.46 ± 1.13) d, and the cost of operation was (4.85 ± 0.36) yuan. Before the operation, the VAS score of the patients was reduced, the AOFAS score and the IKDC score increased, the talus inclined angle was improved significantly, the distance of the talus migration was shortened (P＜0.05) .Conclusions In the treatment of chronic ankle instability, the reconstruction of the external ankle ligament with small incision allogeneic tendon can improve the curative effect, shorten the operation time, the length of hospitalization and the distance of the talus, reduce the cost of operation, reduce the VAS score, raise the AOFAS score and IKDC score, and improve the tilt angle of the talus.