Surface Electromyography Reveals Middle Deltoid as the Functionally Dominant Shoulder Muscle After Reverse Total Shoulder Arthroplasty
Our study highlights the middle deltoid as the primary contributor to rotator cuff function in reverse shoulder arthroplasty (RSA), characterized by quantitative activation, significant involvement in all shoulder motions, and increased activation over time. These findings could inform future RSA designs to enhance deltoid wrapping, maximizing strength and efficiency.
Authors
- Alexander D. Pietroski
- Yang Zhou (ORCID: https://orcid.org/0000-0002-0501-1759)
- Stephanie J. Muh (ORCID: https://orcid.org/0000-0001-6617-4116)
- Johnny Kasto
- Chaoyang Chen (ORCID: https://orcid.org/0000-0003-0838-2245)
- Kai Zhu (ORCID: https://orcid.org/0000-0002-2583-2669)
- Chimdindu Obinero
- Mahdi Mazeh (ORCID: https://orcid.org/0009-0003-1478-3923)
Institutions
- Wayne State University (US)
Publication Details
- Journal
- Cureus
- Published
- 2025-03-07
- DOI
- https://doi.org/10.7759/cureus.80229
- Citations
- 2
- Primary Topic
- Shoulder Injury and Treatment
- Type
- article
- Field-Weighted Citation Impact
- 4.01