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Chronicity is Associated With the Glenohumeral Synovitis in Patients with a Rotator Cuff Tear

Chronicity is Associated With the Glenohumeral Synovitis in Patients with a Rotator Cuff Tear

Du-Han Kim, Prof. , KOREA, REPUBLIC OF Chul-Hyun Cho, MD, PhD, KOREA, REPUBLIC OF

Keimyung University Dongsan Hospital , Daegu, KOREA, REPUBLIC OF


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Sports Medicine

Joints


Summary: Glenohumeral joint synovitis might be more involved in the pathogenesis for pain and tear progression of rotator cuff disease compared with subacromial space synovitis.


Synovitis of the glenohumeral joint (GHJ) and subacromial space (SAS) is one of the most common findings during arthroscopic rotator cuff repair (RCR). The purpose of this study is to determine clinical factors associated with the degree of synovitis in patients with a rotator cuff tear and whether macroscopic synovitis affects early clinical outcomes following arthroscopic RCR. Arthroscopic videos of 230 patients treated with arthroscopic RCR were randomly reviewed by two experienced shoulder surgeons. The synovitis scores of the GHJ using David’s grading system and the SAS using Jo’s grading system were rated with a consensus. Univariate and multivariate analyses were used to identify the associations between the synovitis scores and various parameters, including demographics, preoperative, and postoperative clinical outcomes. Univariate analyses revealed that age, side, body mass index, duration of symptoms, preoperative stiffness, diabetes, muscle atrophy, fatty infiltration, tear size, preoperative clinical scores, and preoperative range of motion were significantly associated with the GHJ synovitis score (all P < .05). Multivariate analyses revealed that the duration of symptoms, tear size, and diabetes were significantly associated with the GHJ synovitis score (P = .048, P = .025, P = .011, respectively). Longer duration of symptoms, larger tear size, and the presence of diabetes were independently associated with increased GHJ synovitis in patients with a rotator cuff tear. These results suggest that GHJ synovitis might be more involved in the pathogenesis for pain and tear progression of rotator cuff disease compared with SAS synovitis.


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