Clinical outcome of rotator cuff repair in patients with mild to moderate glenohumeral osteoarthritis

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Clinical outcome of rotator cuff repair in patients with mild to moderate glenohumeral osteoarthritis Dong Hyun Kim1 · Seung Gi Min1 · Ho Seok Lee2 · Hyun Joo Lee1 · Kyeong Hyeon Park1 · Seok Won Chung3 · Amir Dehdashtian4 · Jong Pil Yoon1  Received: 15 February 2020 / Accepted: 28 September 2020 © European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2020

Abstract Purpose  Osteoarthritis (OA) in the glenohumeral joint is a concomitant lesion with rotator cuff tear that commonly occurs in older patients. The authors aimed to evaluate the effect of associated OA on the treatment outcome of rotator cuff repair. Methods  A total of three hundred and forty-eight patients who underwent full-thickness arthroscopic rotator cuff repair were retrospectively reviewed, and the data were prospectively collected. The severity of OA was evaluated using the Samilson and Prieto method preoperatively and the Outerbridge classification intraoperatively. The patients were divided into the small-to-medium group and large-to-massive group according to rotator cuff tear size and were evaluated for presence or absence of OA. The postoperative clinical outcomes were assessed using the visual analog scale for pain, simple shoulder test (SST), University of California–Los Angeles, Constant, and American Shoulder and Elbow Surgeons (ASES) scoring systems at baseline and at final follow-up. Results  Forty-five patients were diagnosed with glenohumeral OA (12.9%). Overall, no significant differences were observed in demographic and baseline data between the two groups according to the presence or absence of OA. The clinical symptoms of both groups significantly improved at the final follow-up. At the final follow-up, no significant differences were found in the VAS for pain, SST, UCLA, Constant, and ASES scores between the two groups. In the large-to-massive tear group, patients with OA had significantly inferior clinical results compared with those without OA. Conclusion  The clinical outcome scores improved after rotator cuff repair regardless of the presence of concomitant OA. However, glenohumeral OA should be considered as a potential negative prognostic factor in patients with large-to-massive rotator cuff tears. Level of evidence III. Keywords  Osteoarthritis · Rotator cuff · Shoulder · Glenohumeral joint

Introduction

* Jong Pil Yoon [email protected] 1



Department of Orthopaedic Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea

2



Department of Radiology, School of Medicine, Kyungpook National University, Daegu, South Korea

3

Department of Orthopaedic Surgery, School of Medicine, Konkuk University, Seoul, South Korea

4

Department of Surgery, Section of Plastic and Reconstructive Surgery, University of Michigan, Ann Arbor, MI, USA



The rotator cuff is responsible for stabilizing the glenohumeral joint, abducting, externally rotating, and internally rotating the humerus. Rotator cuff disease comprises a spectrum of pathology affecting the rotator cuff tendons, ra