Objectives: To evaluate the clinical and radiological outcomes of open anatomical reconstruction of both the coracoclavicular and acromioclavicular ligaments using semitendinosus autograft augmented with a cortical button construct in acute high-grade acromioclavicular joint dislocation. Methods: This retrospective consecutive case series included patients treated for acute Rockwood type III–V acromioclavicular joint dislocation between 2018 and 2023. All patients underwent open anatomical ligament reconstruction using semitendinosus autograft with cortical button augmentation. Clinical outcomes were assessed using the Constant– Murley, Quick Disabilities of the Arm, Shoulder and Hand, and Simple Shoulder Test scores. Radiological evaluation included coracoclavicular distance measurements preoperatively and at final follow-up. Complications and loss of reduction were recorded. Results: Thirteen patients (mean age 35.4±8.7 years) were included, with a mean follow-up of 28.6±4.3 months. All functional scores significantly improved (p<0.001). The coracoclavicular distance decreased from 17.3 mm to 8.5 mm. Loss of reduction occurred in two patients (15%) but remained asymptomatic. Twelve patients (92%) returned to previous activities. No major complications or revision surgeries were observed. Conclusion: Combined anatomical coracoclavicular and acromioclavicular ligament reconstruction with semitendinosus autograft and cortical button augmentation provides reliable functional recovery, satisfactory radiological stability, and a low complication rate in acute high-grade injuries. Keywords: Acromioclavicular, Coracoclavicular, Dislocation, Joint, Reconstruction
Corresponding Author: Süleyman Kaan Öner