Virtual assessment of internal rotation in reverse shoulder arthroplasty based on statistical shape models of scapular size
In a virtual model, the glenosphere position required to maximize IR varied by scapula size. For smaller scapulae, maximum IR0 was reached with a combination of 2.5-mm inferior offset and 0- 4 mm of lateralization. For larger scapulae, maximum IR0 was reached with a combination of 2.5 mm of inferior offset and 4 mm of lateralization. The amount of lateralization required to maximize IRABD also varies by scapula size. Maximum IRABD was reached in smaller scapula with 4-6 mm of lateralization and at least 12 mm of lateralization in larger scapula. These findings may be applied in the clinical decision-making process knowing that impingement-free IR and IRABD can be maximized with combinations of inferior offset and lateralization based on scapula size with minimal effect on external rotation and external rotation in 60° of abduction.
Authors
- Stefan H Greiner (ORCID: https://orcid.org/0000-0003-1667-3237)
- Robert Alexander Creighton (ORCID: https://orcid.org/0000-0001-6179-7947)
- Justin W. Griffin (ORCID: https://orcid.org/0000-0002-1234-9889)
- Sven Lichtenberg (ORCID: https://orcid.org/0000-0003-2567-4899)
- Anthony A. Romeo (ORCID: https://orcid.org/0000-0003-4848-3411)
- G. Russell Huffman (ORCID: https://orcid.org/0000-0002-2277-5080)
- Benjamin W. Sears (ORCID: https://orcid.org/0000-0001-5457-0189)
- Bradford O. Parsons (ORCID: https://orcid.org/0000-0001-7264-7282)
- Nick Metcalfe
- Dirk Petré (ORCID: https://orcid.org/0000-0003-1100-4181)
- Michael J. Kissenberth (ORCID: https://orcid.org/0000-0002-6191-5920)
- John M. Tokish (ORCID: https://orcid.org/0000-0003-4557-4537)
- Anup Shah (ORCID: https://orcid.org/0000-0003-3856-1367)
- Patrick J. Denard (ORCID: https://orcid.org/0000-0002-2641-5920)
- Brandon J. Erickson (ORCID: https://orcid.org/0000-0003-3238-7839)
- Tim R. Lenters
- Patric Raiss (ORCID: https://orcid.org/0000-0003-0489-0365)
- David Lutton (ORCID: https://orcid.org/0000-0001-8909-8128)
- Brian C. Werner (ORCID: https://orcid.org/0000-0002-7956-2123)
- Tyrrell Burrus
- Evan Lederman (ORCID: https://orcid.org/0000-0002-1035-6751)
- Asheesh Bedi (ORCID: https://orcid.org/0000-0001-8926-7139)
- Alexandre Lädermann (ORCID: https://orcid.org/0000-0002-2797-8936)
- Albert Lin (ORCID: https://orcid.org/0000-0003-4204-3482)
- Lisa A. Galasso (ORCID: https://orcid.org/0009-0002-5424-6252)
- Kevin W. Farmer (ORCID: https://orcid.org/0000-0002-4026-5340)
- Michael J. Bercik (ORCID: https://orcid.org/0000-0003-4411-6497)
- Peter Habermeyer
- Philipp Moroder (ORCID: https://orcid.org/0000-0002-0987-9926)
- Tyler J. Brolin (ORCID: https://orcid.org/0000-0001-7632-2565)
- Julia Lee (ORCID: https://orcid.org/0000-0002-4509-6240)
- Matthew T. Provencher (ORCID: https://orcid.org/0000-0002-8859-3415)
- Bruce S. Miller (ORCID: https://orcid.org/0000-0002-8695-5988)
- Christopher O’Grady
- Joern Steinbeck
- Daniel Davis
- Sam Harmsen
Institutions
- University of Geneva (CH)
- University Hospital Regensburg (DE)
- Cleveland Shoulder Institute (US)
- Arthrex (United States) (US)
- University Hospital of Geneva (CH)
- Rex Medical (United States) (US)
- Hôpital de la Tour (CH)
- University of Virginia (US)
Publication Details
- Journal
- JSES International
- Published
- 2024-08-09
- DOI
- https://doi.org/10.1016/j.jseint.2024.07.014
- Citations
- 4
- Primary Topic
- Shoulder Injury and Treatment
- Type
- article
- Field-Weighted Citation Impact
- 2.29
Funders
- Arthrex