Cardiovascular Risk in Digital Osteoarthritis

Inclusion Criteria: For all subjects: * Adult male or female subject * Able to give informed consent to participate in research * Affiliated with a Social Security plan For the digital osteoarthritis group: * Consultant in Rheumatology at Clermont-Ferrand University Hospital * Affected by digital osteoarthritis meeting ACR diagnostic criteria with radiographic signs of osteoarthritis validated by a radiologist. For the control group : * Rheumatology consultant at the Clermont-Ferrand University Hospital or hospitalized in this department for a non-arthritic, non-rheumatic pathology. * Patients with spinal disc pathology (lumbago, radiculalgia due to disco-radicular conflict) or non-severe osteoporosis, i.e. with a densitometric T score between -2.5 and -3 DS. Exclusion Criteria: For all topics : * Refusal to participate * Pregnant women, nursing mothers * Subjects under guardianship or curatorship, deprived of liberty, or under court protection For the digital osteoarthritis group: \- Existence of diagnostic arguments for another inflammatory rheumatism (rheumatoid arthritis, spondylarthritis, psoriatic arthritis, lupus, gout, chondrocalcinosis...) or another arthrosic localization (gonarthrosis, coxarthrosis, discarthrosis) symptomatic at the time of inclusion or affecting daily activities. For the control group : * Existence of chronic inflammatory rheumatism (rheumatoid arthritis, spondylitis, psoriatic arthritis, lupus, gout, chondrocalcinosis...) * Existence of digital osteoarthritis * Existence of another painful arthritic site (knee, hip, rachi) Existence of finger pain, whatever the etiology.