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Background: The purpose was to assess the minimum 2-year patient-reported outcomes and failure rate of patients who underwent revision arthroscopic rotator cuff repair augmented with acellular human dermal matrix (AHDM) allograft for repairable retears., Methods: From 2008-2014, patients who underwent revision rotator cuff repair augmented with AHDM with greater than 2 years' follow-up by a single surgeon were retrospectively reviewed. Data regarding surgical history, demographic characteristics, and medical comorbidities were collected. Outcome data included American Shoulder and Elbow Surgeons (ASES) and Single Assessment Numeric Evaluation (SANE) scores, as well as rotator cuff healing on magnetic resonance imaging or ultrasound. Retears and subsequent surgical procedures were characterized., Results: A total of 28 patients met our inclusion criteria, and 23 (82%) were available for follow-up at 2 years. The mean age was 60.1 ± 9.3 years (range, 43-79 years), with a mean follow-up period of 48 ± 23 months. All patients had at least 1 prior rotator cuff repair. Of the 23 patients, 13 (56%) underwent postoperative imaging, and 4 of these 13 (31%) had a retear. A reoperation was performed in 3 of 23 patients (13%). Among the 6 patients with both preoperative and postoperative outcome scores, we saw improvement in the ASES score from 56 to 85 (P = .03) and in the SANE score from 42 to 76 (P = .03). The full cohort's mean postoperative ASES and SANE scores were 77 and 69, respectively., Conclusion: AHDM allograft augmentation is a safe and effective treatment method for patients with full-thickness rotator cuff retears. Further research is needed with larger studies to confirm these findings from our small cohort of patients., (Copyright © 2017 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)

Thirty-seven patients (41 shoulders) younger than 50 years of age (mean age, 43.7 years) underwent all-arthroscopic repairs of rotator cuff tears between 1994 and 2002. With a minimum 3-year follow-up (average 69 months, range 37-161 months), postoperative function was assessed by means of a UCLA scoring system, range of motion measurements, strength exam, and VAS pain score. Tears were categorized into 4 groups by type and size: partial undersurface tears, complete tears that were small (<1 cm), medium (1-3 cm), or large/massive (4-5 cm). All but 1 patient (97%) was subjectively satisfied and felt to be improved postoperatively. Average postoperative UCLA score improved significantly, and 95% of the shoulders achieved good or excellent postoperative results. Postoperative pain scores and strength evaluation also improved significantly. There was no significant loss of motion postoperatively and outcomes were independent of tear size and type. To date, there have been no revisions. These treatment results suggest that arthroscopic management in patients younger than 50 can achieve predictably good to excellent results regardless of tear size.