Maïa trapeziometacarpal joint arthroplasty: Survival and clinical outcomes at 5 years' follow-up.

We sought to report the clinical and radiological outcomes and the survival of Maïa trapeziometacarpal joint arthroplasty retrospectively at a mean 5 years' follow-up. We evaluated the implant survival and the clinical outcomes of 93 patients (113 prostheses). Patients were examined during a consultation and their mobility, key pinch strength and satisfaction were recorded. Patients also completed a QuickDASH evaluation. The 5-year survival rate was 92.2%. The mean QuickDASH Score was 26.7. The complication rate was 31% and the revision rate was 12.4%. The most common complication was dislocation and the most frequent cause of surgical revision was periprosthetic ossification. We identified two cases of aseptic loosening. This study shows the Maïa prosthesis provides satisfactory medium-term results and has an excellent 5-year survival. However, the high complication and revision rates are still a major concern.