Clinical Research Directory

Inclusion Criteria: * Age ≥ 18 years * Patients with symptomatic digital osteoarthritis according to the criteria of the American College of Rheumatology * 1 painful PIP joint (Analog digital scale ≥ 4/10) for more than 3 months * having failed the usual medical treatment for a minimum of 3 months (level 1 analgesics, NSAIDs, infiltrations) * Signature of informed consent * patient affiliated to a social security scheme * knowing how to read French (for the questionnaires) Exclusion Criteria: * digital osteoarthritis secondary to other known causes (eg gout, reactive arthritis, RA, psoriatic arthritis, spondyloarthropathies, septic arthritis) * anesthetic contraindications to surgery or to performing an MRI * Existence of a pain syndrome in the upper limbs, which would interfere with the assessment of AD. * Fibromyalgia * Use of oral, intramuscular or intra-articular or intravenous corticosteroids, immunosuppressants (methotrexate, sulfasalazine, leflunomide, biomedicines), hyaluronic acid infiltration in the finger joints in the previous month * Introduction of a new treatment for osteoarthritis of the hand in the previous month, including physiotherapy and fitting of a new finger orthosis. * History of denervation of the proximal interphalangeal joint (PIP) * Patient under legal protection (guardianship or curatorship) and patient deprived of liberty * Patient under AME * Participation in another interventional research involving the human person or period of exclusion at the end of a previous research involving the human person.