(Donghwan Lee, Ph.D. Candidate, Department of Mechanical Engineering, Sogang University, Republic of Korea, 17. March, 2026 )
Full title: Subscapularis Integrity and Posterosuperior Cuff Tear Severity Affect Scapular Impingement and Joint Stability in Reverse Total Shoulder Arthroplasty: Medialization vs. Lateralization
This study provides a comprehensive overview of the interaction between reverse total shoulder arthroplasty (RTSA) designs, subscapularis integrity, and posterosuperior cuff tear severity. Using the AnyBody Modeling System, the study quantified impingement stress and joint translation to determine which RTSA configuration, combined with subscapularis status, more effectively minimizes scapular notching-related impingement stress and improves joint stability. This webcast demonstrates how musculoskeletal model simulations can inform surgical planning. It highlights the potential benefits of lateralized RTSA with subscapularis repair in reducing the risk of scapular notching and improving joint stability.
Presented by:
Donghwan Lee, Ph.D. Candidate
Department of Mechanical Engineering, Sogang University, Republic of Korea
Playback (159 MB)YouTube