Xinxiang Medical University
[目的] 探讨股骨外髁矢状位构形相关解剖形态参数对前交叉韧带（anterior cruciate ligament,ACL）损伤的影响。[方法] 回顾性分析2017年01月—2020年01月期间行膝关节镜手术治疗的100例患者。其中50例ACL损伤患者作为损伤组，50例单纯半月板损伤患者作为对照组。选取两组经股骨外侧髁MRI矢状位图像测量计算股骨外髁指数，两组中X线资料完整者30例，在标准侧位片上测量计算股骨外髁后髁比，在两组间进行比较并评估与ACL损伤风险的相关性。[结果]损伤组股骨外髁指数为（0.68±0.04），对照组为（0.72±0.05），差异有统计学意义(P＜0.05)，临界值为0.725；损伤组外髁后髁比为（0.68±0.09），对照组为（0.76±0.06），差异有统计学意义(P＜0.05)，临界值为0.652。[结论] 股骨外髁矢状位构形参数外髁指数与外髁后髁比是前交叉韧带损伤的和预测的危险因素，当外髁指数与外髁后髁比减少时，ACL损伤风险增高。
Abstract: [Objective] To discuss the influence of the anatomical morphological parameters related to the sagittal configuration of the lateral femoral condyle on injury of anterior cruciate ligament (ACL). [Methods] A retrospective analysis was performed on 100 patients undergoing arthroscopic knee surgery in our hospital from January 2017 to January 2020. There were 50 patients with ACL injury as the injury group, and 50 patients with simple meniscus injury as the control group. The femoral lateral condyle index was measured and calculated by MRI sagittal images of the lateral condyle of the femur in both groups. Thirty patients in the two groups had complete X-ray data. The posterior condyle ratio of femur lateral condyle was measured and calculated on standard lateral radiographs, and the correlation between the two groups and the risk of ACL injury was evaluated. [Results] The femoral lateral condyle index was (0.68±0.04) in the injured group and (0.72±0.05) in the control group, and the difference was statistically significant (P＜0.05), the cut-off value was 0.725; The posterior condyle ratio of femur lateral condyle was (0.68±0.09) in the injury group and (0.76±0.06) in the control group, and the difference was statistically significant (P＜0.05), and the cut-off value was 0.652. [Conclusion] The lateral condyle index and posterior condyle ratio of lateral condyle are predictive risk factors for an ACL injury. The risk of ACL injury increased when Sagittal configuration of the lateral condyle index and posterior condyle ratio of lateral condyle were reduced.