Clinical Research Directory

Inclusion Criteria: * We included patients who had knee pain due to knee OA diagnosed according to the American College of Rheumatology including: * Knee pain AND presence of at least three of the following 6 criteria: * Age \> 50 years * Morning stiffness \< 30 minutes * Crepitus during movement * Periarticular bone pain * Periarticular bone hypertrophy * Absence of increased local warmth. Exclusion Criteria: * For both groups, we did not include: * Patients with a pacemaker, implantable defibrillator, cochlear implant, or any metal implant contraindicating MRI (knee prosthesis, hip prosthesis, etc.). * Pregnant women * Patients with an active infection * Profound hypoesthesia or thermoalgic sensitivity disorder * Poorly vascularized areas: arteritis, phlebitis, ischemia * Patients on anti-vitamin K treatment or with a coagulation disorder. Patients with long-term corticosteroid therapy or having a total knee replacement, those who have received therapies for knee osteoarthritis including intra-articular corticosteroid injection or viscosupplementation in the last 4 months, and Patients with knee pain of non-osteoarthritic origin were also not included in the study.