Inclusion Criteria:  Male/female aged >18 years Diagnosis of chondromalacia patella after physical examination and MR imaging Those whose symptoms persist for >3 months Participating in the study voluntarily  Exclusion Criteria:  Pregnant patients History of previous knee surgery To have received physical therapy from the knee area in the last 6 months Previous RF treatment or any therapeutic injection of the knee such as steroid, hyaluronic acid within 3 months Those with pain radiating from the waist or hip Patients with neuropathic pain History of tumor, infectious, psychiatric disease, bleeding diathesis History of knee trauma in the last 6 months Those with systemic diseases such as hepatitis, coagulopathy Patients with BMI >40 Finding a leg length difference