Rhizarthrosis Surgery and Functional Recovery: Arthroplasty vs. Trapezectomy

This is a two-center, randomized, prospective, comparative study.

The functional, clinical and radiographic evaluation in the early, medium and long term will make it possible to determine the possible superiority of arthroplasty if it exists.

The close evaluation of the patients during the first 3 months will make it possible to update the superiority of the arthroplasty on the functional recovery in the short term if it exists.

Inclusion criteria

• Age >45 years
• Symptomatic trapezius-metacarpal osteoarthritis after failure of medical treatment ( night orthosis 3 months + failure of 2 infiltrations/year)
• Patient who has given his/her consent to participate in the study after being informed by the surgeon,
• Patient living in France and able to answer the survey alone.
• Subject affiliated to a social security system or beneficiary of such a system
• No participation in any other clinical study

Exclusion criteria

• Minor patient
• Trapezium height < 8 mm
• Major subject protected by law, under curatorship or guardianship
• Known allergy to the materials of the medical device
• Local infection
• Local skin necrosis or unhealed wound
• Pregnant or nursing women