Abstract
Purpose
Full-thickness retracted massive supraspinatus tears are a challenge for arthroscopic surgeons where multiple options for treatment exist, but medializing the attachment is a relatively easy procedure for which a decision can be taken intraoperatively. We investigate the viability of
Material and methods
Ten freshly thawed cadavers were taken and dissected. The supraspinatus tendon was resected, and then its attachment was progressively medialized. The range of motion (abduction, internal and external rotation) was recorded and compared.
As a result, we noted a statistically significant decrease in abduction, internal and external rotation with progressive medialization of the supraspinatus insertion.
Conclusion
Medialized repair of the supraspinatus can be performed only to an extent beyond which it compromises glenohumeral motion. We noted a statistically significant decrease in ROM with even a 3 mm medialization of the tendon, but the acceptable medialization has to be determined on a case-to-case basis.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Dr. Pallav Mishra and Dr. Jai Aditya. The first draft of the manuscript was written by Dr. Jai Aditya and Dr. Pallav Mishra, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Mishra, P., Jhamb, J.A., Goel, P. et al. The effect of medial shift of supraspinatus tendon on the glenohumeral joint motion—a cadaveric study. International Orthopaedics (SICOT) 48, 513–520 (2024). https://doi.org/10.1007/s00264-023-06009-z
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DOI: https://doi.org/10.1007/s00264-023-06009-z