About this trial
Rhizarthrosis is a form of osteoarthritis that affects the trapeziometacarpal joint at the base of the thumb, which is more common in women over 50. Genetic and hormonal factors as well as the frequency of certain physical movements may contribute to its appearance. Surgical treatment is recommended if medical treatment fails, and trapezectomy is currently considered the standard method, although 3rd generation trapeziometacarpal prostheses are also available.
The aim of this study is to compare the clinical and radiographic results after surgical treatment of rhizarthrosis: prosthesis versus trapezectomy.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
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.
Disqualifiers
Minor patient
Trapezium height < 8 mm
Major subject protected by law, under curatorship or guardianship
Known allergy to the materials of the medical device
Trial population
Patients with symptomatic disabling osteoarthritis in failure of medical treatment
Trial design
Other
Prospective
Treatments tested in this trial
HORUS
DeviceThe trapezium-metacarpal arthroplasty consists of the installation of a bipolar prosthesis composed of a metacarpal implant and a trapezial implant articulated through a metacarpal "head".
Treatment groups
Trial outcomes
Primary outcomes
patient assessment of the wrist
Quick-Dash score (11 minimum value and 55 is maximum )
Secondary outcomes
patient assessment of the wrist pain
Visual Analogical Assessment score (0 no pain 10 severe pain)
Sponsors and contacts
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