Reduced scapular neck impingement in 145° neck-shaft angle semi-inlay compared with 155° neck-shaft angle inlay reverse total shoulder arthroplasty during active external rotation
The distance between the scapular neck and the polyethylene insert during active external rotation was greater in a 145° NSA semi-inlay rTSA compared to a 155° NSA inlay rTSA. This study supports the notion that a 145° NSA semi-inlay rTSA significantly reduces scapular notching compared to a 155° NSA inlay rTSA. However, scapular notching, especially caused by maximum external rotation, should still be considered in shoulders with a 145° NSA semi-inlay rTSA as well, as the distance significantly decreases during external rotation.
Authors
- Scott A. Banks (ORCID: https://orcid.org/0000-0003-0404-6826)
- Hayato Ryoki (ORCID: https://orcid.org/0009-0003-8651-3332)
- Itaru Kawashima (ORCID: https://orcid.org/0000-0002-0283-6747)
- Keisuke Matsuki (ORCID: https://orcid.org/0000-0001-9530-5269)
- Thomas W. Wright (ORCID: https://orcid.org/0000-0001-9174-9874)
- Norimasa Takahashi (ORCID: https://orcid.org/0000-0001-8369-2898)
- Ryo Haraguchi (ORCID: https://orcid.org/0009-0002-0037-5665)
Institutions
- University of Florida Health (US)
- University of Florida (US)
- Anjo Kosei Hospital (JP)
- Funabashi Orthopaedic Hospital (JP)
Publication Details
- Journal
- JSES International
- Published
- 2025-03-29
- DOI
- https://doi.org/10.1016/j.jseint.2025.03.001
- Primary Topic
- Shoulder Injury and Treatment
- Type
- article
- Field-Weighted Citation Impact
- 0.00