ArticleJournal of wrist surgery2026
Ball-and-Socket Replacement for Thumb Carpometacarpal Osteoarthritis: A Comparison Between the Single and Dual Mobility Design.
Article in Journal of wrist surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
7 authors.
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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.
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