全关节镜下胫腓前韧带最远束转位增强修复距腓前韧带的可行性

Feasibility of full arthroscopic anterior tibiofibular ligament′s distal fascicle transposition agumentation repairing anterior talofibular ligament

目的探讨全关节镜下胫腓前韧带最远束(ATiFL-DF)转位增强修复距腓前韧带(ATFL)的可行性。方法采用随机数字表法将12具新鲜冷冻男性尸体下肢标本分为正常组(不离断ATiFL-DF,6例)和缺损组(离断ATiFL-DF,6例)。通过内旋实验比较两组的失效扭矩和失效角度。结果失效扭矩:正常组、缺损组分别为8.152~13.725(11.22±1.96)、7.848~14.031(10.93±2.16)N·m,两组比较差异无统计学意义(t=0.243,P=0.813)。失效角度:正常组、缺损组分别为27.5°~38.6°(33.85°±4.21°)、28.3°~41.7°(34.80°±4.71°),两组比较差异无统计学意义(t=0.365,P=0.723)。结论离断ATiFL-DF并不会对踝关节稳定性造成明显影响,说明全关节镜下ATiFL-DF转位增强修复ATFL是可行的。

Objective To explore the feasibility of full arthroscopic anterior tibiofibular ligament′s distal fascicle(ATiFL-DF)transposition agumentation repairing anterior talofibular ligament(ATFL).Methods Twelve fresh frozen adult cadaver ankle specimens were used.The specimens were randomly divided into normal group(without amputated ATiFL-DF,6 cases)and the defect group(amputated ATiFL-DF,6 cases)by random number table method.The failure torque and the failure angle of the two groups were compared through the internal rotation experiment.Results The failure torque:the normal group and the defect group were 8.152~13.725(11.22±1.96),7.848~14.031(10.93±2.16)N·m,respectively,with no statistical difference(t=0.243,P=0.813).The failure angle:the normal group and the defect group were 27.5°~38.6°(33.85°±4.21°)and 28.3°~41.7°(34.80°±4.71°),respectively,there was no statistical difference(t=0.365,P=0.723).Conclusions The amputated ATiFL-DF do not significantly affect the stability of the ankle joint,which indicate that it is feasible to enhance the repair of ATFL by transposition of ATiFL-DF under full arthroscopy.