Abstract
Purpose
To compare the clinical outcomes of the lasso-loop and simple suture techniques in arthroscopic anterior talofibular ligament (ATFL) repair for the treatment of chronic lateral ankle instability (CLAI).
Methods
From 2018 to 2020, patients with CLAI who underwent arthroscopic ATFL repair using the lasso-loop or simple suture technique were matched 1:1 (arthroscopic lasso-loop [AL] group, n = 29; simple arthroscopic suture [AS] group, n = 29) based on age, sex, affected side, body mass index, and follow-up duration using propensity score matching and retrospectively evaluated. Karlsson score, visual analogue scale (VAS) score, Tegner score, anterior drawer test (ADT) results, complications, patient-reported satisfaction, and magnetic resonance (MR) re-evaluation findings of ATFL quality were used to describe the outcomes.
Results
The patient characteristics or follow-up durations did not significantly differ between the two groups. The Karlsson score, VAS score, and Tegner score improved significantly in both groups after a mean follow-up duration of 29.6 ± 2.8 months. The postoperative clinical scores, ADT results, satisfaction rates, complication rates and MR re-evaluation findings were not significantly different between the two groups at the latest follow-up.
Conclusion
The lasso-loop technique was equivalent to the simple suture technique in arthroscopic ATFL repair for the treatment of CLAI after a minimum follow-up of 2 years, suggesting that the simple suture technique is sufficient for arthroscopic ATFL repair in most patients without the need to add a lasso loop.
Level of evidence
Level III.
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Data availability
The data that support the findings of this study are available from the corresponding author, ZC, upon reasonable request.
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Funding
This study was supported by President Foundation of The Third Affiliated Hospital of Southern Medical University.
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HG, ZC and GJ conceived the study. BC initiated the study design. All coauthors contributed to the refinement of the study protocol and to the implementation of the study. HG and BC drafted the manuscript. All authors have reviewed and given their final approval of the submitted version.
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This retrospective comparative study was approved by the Ethics Committee of The Third Affiliated Hospital of Southern Medical University (approval number 2022-Lunshen-042).
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Guo, H., Chen, B., Chen, Z. et al. The lasso-loop technique is equivalent to the simple suture technique in arthroscopic anterior talofibular ligament repair. Knee Surg Sports Traumatol Arthrosc 31, 2174–2182 (2023). https://doi.org/10.1007/s00167-022-07283-x
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DOI: https://doi.org/10.1007/s00167-022-07283-x