Li Hong-Yun, Cao Li, Li Hong, Hua Ying-Hui, Chen Shi-Yi
Sports Medicine Center of Fudan University; Department of Sports Medicine and Arthroscopy Surgery, Huashan Hospital, Shanghai, China.
Department of Nursing, Huashan Hospital, Shanghai, China.
Orthop J Sports Med. 2021 Aug 31;9(8):23259671211023447. doi: 10.1177/23259671211023447. eCollection 2021 Aug.
Increased internal rotation of the talus has been found in patients with mechanical ankle instability (MAI).
PURPOSE/HYPOTHESIS: To evaluate and compare the talar rotation position before and after lateral ankle lateral stabilization surgery in patients with MAI. We hypothesized that the abnormal internal talus rotation in patients with MAI will decrease after surgery for ankle lateral instability and that there will be no significant difference in internal talus rotation between the ligament repair and reconstruction groups.
Case-control study; Level of evidence, 3.
We retrospectively studied 56 patients with MAI who underwent ankle lateral stabilization surgery after arthroscopic evaluation (repair, 36 cases; reconstruction, 20 cases). Before and after the operation, magnetic resonance images of all the participants were reviewed. The rotated position of the talus was measured and calculated by the Malleolar Talus Index at the magnetic resonance axial plane.
The internal rotation of the talus decreased significantly after ankle lateral stabilization surgery in patients with MAI as compared with before surgery (mean ± SD, 83.3° ± 3.3° vs 86.7° ± 3.9°; < .01). However, there was no statistically significant difference between the ligament repair and reconstruction groups before or after the operation.
Abnormal internal rotation of the talus in patients with MAI was decreased after ankle lateral stabilization surgery.
在机械性踝关节不稳（MAI）患者中发现距骨内旋增加。
目的/假设：评估和比较MAI患者踝关节外侧稳定手术前后距骨的旋转位置。我们假设，MAI患者距骨异常内旋在踝关节外侧不稳手术后会降低，并且韧带修复组和重建组之间距骨内旋无显著差异。
病例对照研究；证据等级，3级。
我们回顾性研究了56例经关节镜评估后接受踝关节外侧稳定手术的MAI患者（修复组36例；重建组20例）。在手术前后，对所有参与者的磁共振成像进行了复查。在磁共振轴位平面上通过踝距骨指数测量并计算距骨的旋转位置。
与术前相比，MAI患者踝关节外侧稳定手术后距骨内旋显著降低（均值±标准差，83.3°±3.3°对86.7°±3.9°；P<.01）。然而，韧带修复组和重建组在手术前后均无统计学显著差异。
MAI患者距骨异常内旋在踝关节外侧稳定手术后降低。
