The anterior talofibular ligament-posterior talofibular ligament angle decreased after ankle lateral stabilization surgery.

Autor: Li HY; Sports Medicine Center of Fudan University, Department of Sports Medicine and Arthroscopy Surgery, Huashan Hospital, No. 12 Urumq Middle Road, Shanghai, 20040, China., Guo A; Department of Sports Medicine, Taizhou Orthopedics Hospital, Taizhou, 317500, Zhejiang, China., Yang F; Department of Foot and Ankle Surgery, Sanmenxia Central Hospital, Sanmenxia, 472000, Henan, China., Zheng JJ; Department of Rehabilitation Medicine, Huadong Hospital Affiliated To Fudan University, Shanghai, 200040, China., Hua YH; Sports Medicine Center of Fudan University, Department of Sports Medicine and Arthroscopy Surgery, Huashan Hospital, No. 12 Urumq Middle Road, Shanghai, 20040, China. hua_cosm@aliyun.com., Chen SY; Sports Medicine Center of Fudan University, Department of Sports Medicine and Arthroscopy Surgery, Huashan Hospital, No. 12 Urumq Middle Road, Shanghai, 20040, China.
Jazyk: angličtina
Zdroj: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA [Knee Surg Sports Traumatol Arthrosc] 2021 May; Vol. 29 (5), pp. 1510-1515. Date of Electronic Publication: 2020 Jul 28.
DOI: 10.1007/s00167-020-06174-3
Abstrakt: Purpose: The angle between the anterior talofibular ligament (ATFL) and the posterior talofibular ligament (PTFL) is increased in patients with chronic ATFL injury. This study aimed to compare the AFTL-PTFL angle before versus after ankle lateral stabilization surgery, and to evaluate whether the ATFL-PTFL angle correlates with the ligament injury severity.
Methods: This retrospective study included 48 patients with mechanical ankle instability treated between 2016 and 2018. After arthroscopic evaluation, all patients underwent ankle lateral stabilization surgery comprising ligament repair (n = 28) or reconstruction (n = 20). The ATFL-PTFL angle was measured in the axial plane on pre- and postoperative MRI. Comparisons were made of the pre- versus postoperative ATFL-PTFL angles, and the ATFL-PTFL angle of the repair versus reconstruction groups. Receiver operating characteristic (ROC) curve analysis was used to assess the diagnostic performance of the ATFL-PTFL angle in selecting the surgical technique.
Results: The postoperative ATFL-PTFL angle was significantly decreased compared with preoperatively. The ATFL-PTFL angle was significantly smaller in the repair group than the reconstruction group preoperatively and postoperatively. The area under the ROC curve was 0.741 (P < 0.01). The optimal cutoff point for the selection of ligament reconstruction was an ATFL-PTFL angle of 89.4° (sensitivity 0.85, specificity 0.61).
Conclusion: The ATFL-PTFL angle decreases after ankle lateral stabilization surgery. The ATFL-PTFL angle is related to the severity of the ATFL injury. Ankle lateral ligament reconstruction should be considered when the ATFL-PTFL angle is > 89.4°.
Level of Evidence: Level III.
Databáze: MEDLINE
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