A modified endobutton technique for treating acromioclavicular joint dislocation

Abstract Purpose: The aim of this study is to evaluate the clinical effects of the modified Endobutton surgical technique in the treatment of acromioclavicular joint dislocation. Methods A total of 46 patients with Rockwood type III-V acromioclavicular joint dislocation, treated with modified ETP (Endobutton) or CHP (clavicular hook plate) from June 2018 to May 2023 in our department, were selected as research subjects. They were divided into CHP internal fixation group (control group, n = 22) and ETP fixation group (observation group, n = 24) according to the surgical treatment method. Results The the observation group had a shorter postoperative length of hospital stay compared to the control group (P < 0.05), and the combined incidence of postoperative shoulder pain and complications was lower in the observation group compared to the control group (P < 0.05). However, the observation group had lower VAS pain scores at 3 days and 3 months postoperatively compared to the control group (P < 0.05). The observation group had a higher Constant-Murley shoulder joint function score at 3 months postoperatively compared to the control group (P < 0.05). The observation group had a significantly higher rate of excellent and good shoulder joint function recovery compared to the control group at 12 months postoperatively (P < 0.05). Conclusion The modified endobutton technique for treating acromioclavicular joint dislocation has shown promising clinical outcomes.