• Sung-Jae Kim, Min Jung, Jae-Hoo Lee, Jae-Han Park, and Yong-Min Chun.
• Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.
• J Shoulder Elbow Surg. 2015 Jun 1; 24 (6): 875-81.

BackgroundThe purpose of this study was to compare clinical outcomes and structural integrity of arthroscopic repair by either transtendon repair or tear completion for a significant (>50%) partial-thickness articular-side subscapularis tear associated with a full-thickness supraspinatus tear.MethodsThe study population comprised 109 patients who underwent arthroscopic repair for partial-thickness subscapularis tears associated with full-thickness supraspinatus tears with either a transtendon technique (81 patients, group T) or tear completion (28 patients, group C). Pain on a visual analog scale; the Subjective Shoulder Value; the American Shoulder and Elbow Surgeons score; and the University of California, Los Angeles shoulder score were used to compare clinical outcomes between the 2 groups. At 6 months after surgery, magnetic resonance arthrography or computed tomographic arthrography was performed to assess structural integrity.ResultsAt the 2-year follow-up, there were no significant differences in functional outcomes between groups. In group T, external rotation was reduced significantly from 55° to 51° (P < .001). The subscapularis and overall retear rates were 8% and 19%, respectively, in group T and 12% and 23%, respectively, in group C. There were no significant differences in retear rates between groups.ConclusionsArthroscopic repair of partial-thickness subscapularis tears associated with full-thickness supraspinatus tears using either the transtendon technique or tear completion resulted in significant functional improvements in both groups except for postoperative external rotation in group T, and there were no significant differences between groups. The retear rates were also not significantly different between groups. However, after subscapularis repair using the transtendon technique, some patients may have decreased external rotation.Copyright © 2015 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.

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