Clinical And MRI Outcomes After Arthroscopic Superior Capsule Reconstruction With Human Dermal Allograft For Irreparable Posterosuperior Rotator Cuff Tears A Minimum Two Year Follow-up

Objectives: Arthroscopic superior capsule reconstruction (SCR) using acellular human dermal allograft (DA) is a recently developed procedure for the treatment of irreparable rotator cuff tears to reduce pain and restore shoulder function. The purpose of this study was to report clinical and structural outcomes of patients who underwent SCR with DA for irreparable tears of the posterosuperior rotator cuff. We hypothesized that SCR using DA would result in significant improvements in clinical outcomes and that outcomes would be positively correlated with graft integrity. Methods: Patients who underwent SCR using DA for irreparable tears of the supraspinatus and infraspinatus tendons and who were at least two years out from surgery were included. Patients reported clinical outcomes were assessed prospectively by the use of the American Shoulder and Elbow Surgeons (ASES) Score, Single Assessment Numerical Evaluation (SANE) Score, Quick Disabilities of the Arm, Shoulder and Hand (DASH) Score, and patient satisfaction. Structurally, acromiohumeral distances (AHD) were assessed both pre- and postoperatively with standard radiographs. Integrity of the DA was assessed by magnetic resonance imaging (MRI). Clinical failures were defined as persistent loss of function and/or pain. Complications were also recorded. Results: Twenty-one patients who underwent SCR with a mean age of 56 (range 41-65) had and a mean follow up of 2.1 years (range 2 - 3) were included. All postoperative outcome scores improved significantly: ASES score improved from 54.2 to 83.9 (p