Annotation. Ablation (denervation of sensory nerves) is a new simpler and more effective method of treatment. RF denervation of the sensory nerves of the TBS in the treatment of coxalgia, CS - in the treatment of osteoarthritis. The latter are most widely used by the method of RF ablation (RFA) of the obturator and femoral nerves in osteoarthritis of the hip joint and knee joint without surgery. We performed it in 35 patients with coxarthrosis and in 25 with gonoarthrosis. The patients underwent Doppler and X-ray MRI, ultrasound, examination. All patients underwent neuroablation by the method developed by us. assessed the results of treatment according to the U. Oberg scale, good and very good results were considered when the patients had no pain in the joints when walking and at rest, the increase in the range of motion of the joints and normal walking were also taken into account. In patients with osteoarthritis of large joints, patients with 1 month - 85.5%, 3 months - 89.3%, 6 months - 82.5%, 12 months - 78.5%. .. The duration of remission has increased for at least 9 months. Unsatisfactory results were observed in 3% of patients with grade IV osteoarthritis who required surgical treatment, i.e., endorotheses of large joints due to the presence of concomitant diseases. ...