Can inadequate acromiohumeral distance improvement and poor posterior remnant tissue be the predictive factors of re-tear? Preliminary outcomes of arthroscopic superior capsular reconstruction

Purpose The factors affecting the anatomical and functional outcomes of arthroscopic superior capsular reconstruction (ASCR) were investigated in this study. Continuity between the posterior remnant tissue and graft, as well as medial-to-lateral anatomical graft continuity, might play a vital role in shoulder stability and functional recovery, which could be correlated with postoperative factors such as the acromiohumeral distance (AHD). Methods Thirty-two patients (36 shoulders) who underwent ASCR were included. The follow-up period was 24.8 ± 6.9 months. The relationship between graft continuity and preoperative, intraoperative, and postoperative factors that could affect the clinical and radiological outcomes of ASCR were investigated. Results The American Shoulder and Elbow Surgeons score increased from 50.3 ± 9.1 points preoperatively to 84.0 ± 5.0 points postoperatively ( p