Clinical Trial to Estimate the Efficacy of the Trapezium-Metacarpal (TMC) Prosthesis Compared to Suspensionplasty.

The main objective of the study is to evaluate the efficacy, safety and cost-utility of the Trapezium-Metacarpal (TMC) prosthesis against Suspensionplasty with Abductor Pollicis Longus (APL) for the treatment of patients with first carpometacarpal (CMC) joint osteoarthritis (OA). Patients will be allocated to one of these two groups: 1. Maïa® TMC prosthesis (Groupe Lépine TM). 2. APL Supensionplasty We will collect patient data using the questionnaires administeredat baseline and after the treatment. The primary outcome will be pain measured by visual analogue scale (VAS) and secondary outcomes will include health-related quality of life measured by EuroQuol 5D questionnaire,