J Wrist Surg
DOI: 10.1055/a-2558-7154
Scientific Article

Ball-and-Socket Replacement for Thumb Carpometacarpal Osteoarthritis: A Comparison Between the Single and Dual Mobility Design

1   Department of Orthopaedic Surgery and Traumatology, AZ Monica Hospital, Deurne, Belgium
2   Department of Orthopaedic Surgery and Traumatology, UZ Leuven, Leuven, Belgium
,
Matthias Papen
2   Department of Orthopaedic Surgery and Traumatology, UZ Leuven, Leuven, Belgium
,
Maxime De Fré
3   Department of Orthopedic Surgery and Traumatology, University of Antwerp, Edegem, Belgium
,
Kristien Vuylsteke
1   Department of Orthopaedic Surgery and Traumatology, AZ Monica Hospital, Deurne, Belgium
,
Annemieke Van Haver
1   Department of Orthopaedic Surgery and Traumatology, AZ Monica Hospital, Deurne, Belgium
,
Frederik Verstreken
1   Department of Orthopaedic Surgery and Traumatology, AZ Monica Hospital, Deurne, Belgium
3   Department of Orthopedic Surgery and Traumatology, University of Antwerp, Edegem, Belgium
,
Matthias Vanhees
1   Department of Orthopaedic Surgery and Traumatology, AZ Monica Hospital, Deurne, Belgium
3   Department of Orthopedic Surgery and Traumatology, University of Antwerp, Edegem, Belgium
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Abstract

Objectives

Total joint arthroplasty is a valid surgical option for end-stage CMC1 osteoarthritis (OA). Currently, there are two types of implants used: the conventional single mobility design, and the new generation dual mobility design. Promising results for the latter design have been reported but there is scant literature on comparing the two implants. The objectives of this study were to first, assess the safety of the implants regarding loosening, revision, and luxation and second, compare the clinical outcomes and patient satisfaction of the two CMC1 implant designs.

Study design

This retrospective study evaluated plain radiographs for complications. To compare the clinical outcomes, patients were matched based on follow-up, age, and gender. Clinical outcomes consisted of lateral pinch and Grip strength, Kapandji, VAS, QuickDASH, and Nelson scores.

Results

An overall complication rate of 5.4% was observed and were all associated with the single mobility design. In contrast, the clinical outcomes were slightly superior in the single mobility design.

Conclusion

This study demonstrates excellent clinical and radiographic outcomes following CMC1 arthroplasty, with a clear trend toward an increased dislocation risk in the single mobility design.



Publikationsverlauf

Eingereicht: 18. September 2024

Angenommen: 13. März 2025

Artikel online veröffentlicht:
09. April 2025

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