Case ReportsSuperior Capsule Reconstruction and Lower Trapezius Transfer for Irreparable Posterior-Superior Rotator Cuff Tear A Case ReportMcCormick, Johnathon R. MD*; Menendez, Mariano E. MD; Hodakowski, Alexander J. BA, ScM; Garrigues, Grant E. MD Author Information 1Rush University Medical Center, Department of Orthopedic Surgery, Chicago, Illinois 2Rush Medical College, Department of Education, Chicago, Illinois *E-mail address for J.R. McCormick: [email protected] Investigation performed at Midwest Orthopaedics at Rush, Chicago, Illinois Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (https://links.lww.com/JBJSCC/B874). JBJS Case Connector 12(2):e22.00098, April-June 2022. | DOI: 10.2106/JBJS.CC.22.00098 Buy Metrics Abstract Case: A 49-year-old right-hand-dominant male weightlifter was referred with persistent left shoulder pain, weakness, and range of motion limitations after failed arthroscopic rotator cuff repair and subsequent arthroscopic debridement for a massive posterior-superior supraspinatus and infraspinatus tear. The patient underwent a superior capsular reconstruction (SCR) with lower trapezius (LT) transfer to re-establish rotator cuff function. Conclusion: LT transfer in addition to SCR may be a promising modality to treat massive, irreparable posterior-superior rotator cuff tears in young adults. LT transfer can optimize external rotation, whereas SCR may more adequately address pain and forward elevation. Copyright © 2022 by The Journal of Bone and Joint Surgery, Incorporated