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  • Title: Knotless anchor repair produced similarly favourable outcomes as knot anchor repair for anterior talofibular ligament repair.
    Author: Li H, Zhao Y, Hua Y, Li Q, Li H, Chen S.
    Journal: Knee Surg Sports Traumatol Arthrosc; 2020 Dec; 28(12):3987-3993. PubMed ID: 32322948.
    Abstract:
    PURPOSE: To compare clinical function after knot anchor versus knotless anchor repair of the anterior talofibular ligament (ATFL) in patients with chronic lateral ankle instability. METHODS: All patients who underwent arthroscopic surgical ATFL repair using knot or knotless suture anchors were included in this study. Functional scores (American Orthopedic Foot and Ankle Society (AOFAS), Karlsson score and Tegner activity scores) and magnetic resonance imaging (MRI) were used to evaluate the ankle with a follow-up of at least 2 years. RESULTS: A total of 52 patients with chronic ankle instability were included in this study. Among these patients, 23 patients underwent one knot anchor repair procedure (Group A), and the other 29 patients underwent one knotless anchor repair procedure (Group B). At the final follow-up, there were no significant differences between Group A and Group B regarding the AOFAS score (89 ± 9 vs 84 ± 11; ns), Karlsson score (82 ± 14 vs 75 ± 18; ns), or Tegner activity score (4 ± 1 vs 4 ± 2; ns). There also were no significant differences in the mean ATFL signal-noise ratio (SNR) value (7.5 ± 4.4 vs 7.3 ± 2.9; ns) or ATFL angle (82° ± 7° vs 84° ± 9°; ns) between the groups. CONCLUSION: When compared with knot repair, knotless repair of the lateral ankle ligament produced similar functional outcomes. LEVEL OF EVIDENCE: III.
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