Authors : Dung Huu Tran, Nam Sy Ho, Nhan Thanh Le Nghi, Nam Anh Ha Tang
DOI : 10.18231/j.ijos.2025.006
Volume : 11
Issue : 1
Year : 2025
Page No : 26-30
Background: Large to massive rotator cuff tears frequently lead to shoulder instability and superior displacement of the humeral head. SCR, particularly with an LHB autograft, has demonstrated potential in maintaining glenohumeral stability and reducing degenerative changes associated with rotator cuff arthropathy. Aim and Objective: This study investigates the biomechanical effectiveness of superior capsular reconstruction (SCR) using an autograft from the long head of the biceps tendon (LHB) to prevent upward displacement of the humeral head in patients with large to massive rotator cuff tears. Materials and Methods: Ten shoulders from five fresh cadavers were used to simulate large and massive rotator cuff tears by detaching the supraspinatus, infraspinatus tendons. The force needed to elevate the humeral head by 1.5 cm was assessed both before and after superior capsular reconstruction (SCR) utilizing a long head of the biceps (LHB) autograft. Comparative analysis was conducted to evaluate the effectiveness of the reconstruction. Results: Post-reconstruction, the force required for humeral head migration increased by 120.6% and 174.5% for large and massive rotator cuff tears, respectively, demonstrating significant biomechanical improvement compared to the pre-reconstruction state (P < 0> Conclusions: Superior capsular reconstruction with the LHB autograft is a biomechanically viable approach for stabilizing the shoulder joint and mitigating superior humeral migration in cases of large to massive rotator cuff tears. Future clinical studies are recommended to confirm these findings in patient populations. Keywords: Superior capsular reconstruction; Superior humeral migration; Rotator cuff tear; Biceps tendon.