Functional results of surgical treatment for acromioclavicular joint dislocation using the modified weaver-dunn surgical technique

Objective: To evaluate the functional outcome of patients who underwent surgical treatment using the modified Weaver-Dunn technique for the treatment of acute acromioclavicular dislocation. Method: Retrospective case series study (level of evidence IV) based on their view of medical records of 20 patients who participated in a 25-week postoperative follow-up, in which they were assessed using the UCLA score and submitted to radiological control. This follow-up was due to surgical treatment for acromioclavicular dislocation using the modified Weaver-Dunn technique, with two 5.5mm-Peek Zip® anchors fixed to the coracoid process, with ties on the clavicle, and transfer of the coracoacromial ligament to the distal clavicle. Results: The patients were followed-up for 25 weeks, and all presented satisfactory functional results, with 70% considered excellent and 30% classified as good. However, a high rate of reduction loss of the acromioclavicular joint was observed, which corresponded to 6 of the 20 cases monitored. The average time before returning to routine activities was 20.7 weeks; the shortest was 16 weeks, and the longest, 30 weeks. Conclusion: In the present study, we found that all patients who were submitted to the described technique presented a low level of morbidity and satisfactory functional results (excellent and good), successfully returning to their everyday activities.