Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/45622
Title: Revision options for discontinued trapeziometacarpal arthroplasties: compatibility with currently available implants
Authors: Vandenabeele, Pieter
VANMIERLO, Bert 
Decramer, Arne
Soete, Jeroen
Muermans, Stijn
Goubau, Jean
DUERINCKX, Joris 
Issue Date: 2025
Publisher: SAGE PUBLICATIONS LTD
Source: Journal of hand surgery. European volume,
Status: Early view
Abstract: Surgical revision options for failed trapeziometacarpal total joint replacement include implant replacement and trapeziectomy. However, discontinuation of older implants complicates revision with original components, particularly as removing a well-fixed metacarpal stem can be challenging. This study examined the feasibility of pairing discontinued stems (Arpe, Elektra and Ivory) with currently available necks (Ma & iuml;a, Moovis and Touch). We analysed the metallurgical composition, insertion depth, contact surface area and mechanical stability for all possible combinations of these implants. Our findings show compatibility of both Ivory and Arpe stems with the Touch neck and of the Elektra stem with the Moovis neck. Under strict lateral loading, fixation was stable up to 826.87 N, surpassing in vivo forces. Microscopic evaluation after the biomechanical load-to-failure test showed negligible damage to the connecting surfaces. These results suggest that it is safe to pair discontinued stems with currently available necks in revision trapeziometacarpal total joint arthroplasty.
Notes: Vandenabeele, P (corresponding author), AZ Delta, Dept Orthopaed & Traumatol, Brugsesteenweg 90, B-8800 Roeselare, Belgium.
vandenabeele.pieter@hotmail.com
Keywords: Arpe;arthroplasty;compatibility;Ivory;revision;touch;trapeziometacarpal
Document URI: http://hdl.handle.net/1942/45622
ISSN: 1753-1934
e-ISSN: 2043-6289
DOI: 10.1177/17531934251317410
ISI #: 001415756600001
Rights: The Author(s) 2025
Category: A1
Type: Journal Contribution
Appears in Collections:Research publications

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