Endobutton combined with reinforced anchor effectively treated Tossy III acromioclavicular joint dislocation

Objective: This study aimed to evaluate the clinical efficacy of endobutton combined with a reinforced anchor in the treatment of Tossy III acromioclavicular joint (ACJ) dislocation. Methods: A total of 42 patients with Tossy Ⅲ ACJ dislocation treated between July 2017 and June 2023 were retrospectively analyzed. Operation time, intraoperative blood loss, length of hospital stay, and postoperative outcomes were assessed. Outcomes included Visual Analog Scale (VAS) scores for pain at 1 and 6 months, Constant–Murley scores for shoulder function, Karlsson scores for treatment efficacy, and postoperative complications. Results: The mean follow-up period was 23.43 Å} 7.70 months. All patients achieved effective reduction and incision healing. The mean operation time was 64.29 Å} 5.13 minutes, intraoperative blood loss was 46.79 Å} 4.25 mL, and hospital stay was 4.95 Å} 1.29 days. Postoperative VAS scores significantly decreased compared with preoperative values (P < .001), while Constant–Murley scores markedly improved at 1 and 6 months (P < .001). Karlsson scores showed 40 excellent and 2 good outcomes. Magnetic resonance imaging confirmed satisfactory healing at 1 and 6 months. Two patients demonstrated partial loss of ACJ reduction at 3 months, without clinical symptoms. No cases of complete radiological failure occurred. Conclusion: Endobutton combined with reinforced anchor demonstrated satisfactory early clinical efficacy in the treatment of Tossy Ⅲ ACJ dislocation, with improved pain relief, functional recovery, and a low complication rate. Cite this article as: Sun X, Cai C, Li Q, Huang L. Endobutton combined with reinforced anchor effectively treated Tossy III acromioclavicular joint dislocation. Acta Orthop Traumatol Turc. 2026, 60 (1), 0088, doi:10.5152/j.aott.2026.24088.