Relationship between cup position and neck type in the TOUCH <sup>®</sup> trapeziometacarpal prosthesis: a CAD simulation and cadaver study
Posteroanterior cup angulation influences the choice of neck type. To minimize the risk of impingement, cup placement parallel to the PAST is optimal. When the cup is tilted 15° or more anteriorly, we recommend using a straight neck to reduce the risk of impingement during thumb extension.
Authors
- M. Bergere
- Bernard Prandi
- Julie Mottet
- Lionel Athlani (ORCID: https://orcid.org/0000-0002-8851-182X)
- Damien Motte
- Nicolas Gualdes
Institutions
- Swissmedic (CH)
- University Hospital of Geneva (CH)
- Geneva College (US)
Publication Details
- Journal
- Journal of Hand Surgery (European Volume)
- Published
- 2026-03-15
- DOI
- https://doi.org/10.1177/17531934261420149
- Primary Topic
- Orthopedic Surgery and Rehabilitation
- Type
- article
- Field-Weighted Citation Impact
- 0.00