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目的 比较关节镜下保留及非保留残端重建前交叉韧带(anterior cruciate ligament,ACL)的疗效.方法 选择我院2014.03～2015.05收治的64例有韧带残端残留的ACL断裂患者64例为研究对象,采用关节镜下四股自体腘绳肌腱单束重建技术,随机分为两组,即保留残端组和非保留残端组,每组32例,非保残组给予切除残端行常规关节镜手术重建ACL,保残组在保留残端的基础上行关节镜下ACL重建术.记录比较两组术前、术后关节稳定性及功能评分进行对比,术后1年测本体感觉,部分患者二次手术时探查重建韧带.结果 64例均获随访,随访时间12～27个月.术后1年Lysholm评分,非保残组平均91.9分,保残平均93.2分;IKDC评分功能在A、B级非保残组29例,保残组30例;抽屉试验阴性非保残组29例保残组31例,Lachman试验阴性两组均为30例,比较差异均无统计学意义(P＞0.05);两组的本体感觉重复试验无差异,患者自述关节稳定性及位置觉以观察组稍优,术后共有9例患者二次行关节镜手术,对照组4例,观察组5例,镜下见对照滑膜覆盖率及韧带表面光滑度较观察组稍差,因例数太少,未行统计学分析. 结论 关节镜下保留残端与非保留残端单束重建术重建ACL,均能获得满意的临床效果,但关节镜下保留残端患者有更好的自我感觉,可能和保留残端有利于移植物的再血管化及本体感受器的恢复有关,需要更多的数据来进行统计学分析.“,”Objective To compare the outcome of anterior cruciate ligament (ACL) reconstruction under Arthroscopy with preserving versus removing the remnant of native ACL using hamstring autograft.Methods From March 2014 to May 2015,64 patients underwent ACL reconstruction using hamstring autograft.They were randomly divided into two groups,with 32cases in each group.The control group removed residual ligament and the experimental group retained ligament stump Preoperative,postoperative joint stability,and functional scores were recorded and compared in the two groups.1 year after the operation the proprioception was tested in all patients,and some patients underwent a second surgery to explore the reconstruction of the ligament.Result 64 cases were followed up with a length of 12～27 months.One year after the operation results were compared.The Lysholm score of the control group was 91.9 points,and that of experimental group was 93.2 points;IKDC score of the control group in grade A and B was 29 cases,and that of the experimental group was 30 cases;the drawer test negative in control group was 29 cases and in experimental group was 31 cases.Lachrnan test in the two group was both 30 cases,and there was no statistically significant difference (P＞0.05).The proprioception repeated test of two group had no significant difference.The self-reported joint stability and position sense in the experimental group was better than that of the control group after operation.There were 9 patients underwent a second arthroscopic surgery,with 4 cases in the control group and 5 cases in the experimental group.Microscopically,synovial coverage and ligament surface smoothness of the observation group were better than in the control group.Because the number of cases is too small,no statistical analysis was performed.Conclusions Anterior cruciate ligament (ACL) reconstruction under Arthroseopy with preserving versus removing the remnant of native ACL could both result in satisfactory clinical outcomes.However,the proprioception of patients in the stump-preserving group was better than that in the non-preserving group possibly due to the revascularization and re-establishment of the proprioception facilitated by the stump preservation,which requires confirmation with more data.