Rhizarthrosis Surgery and Functional Recovery: Arthroplasty vs. Trapezectomy

Inclusion Criteria: 1. Age \>45 years 2. Symptomatic trapezius-metacarpal osteoarthritis after failure of medical treatment ( night orthosis 3 months + failure of 2 infiltrations/year) 3. Patient who has given his/her consent to participate in the study after being informed by the surgeon, 4. Patient living in France and able to answer the survey alone. 5. Subject affiliated to a social security system or beneficiary of such a system 6. No participation in any other clinical study Exclusion Criteria: 1. Minor patient 2. Trapezium height \< 8 mm 3. Major subject protected by law, under curatorship or guardianship 4. Known allergy to the materials of the medical device 5. Local infection 6. Local skin necrosis or unhealed wound 7. Pregnant or nursing women