Effect of Intraarticular injection of ozone on inflammatory cytokines in knee osteoarthritis

Introduction: Knee Osteoarthrosis is one of the most debilitating diseases. Prolotherapy includes intraarticular injection of various drugs to decrease inflammation. Injection of Intradiscal O2-O3 has reduced pain and disability of patients with low back pain due to prolapsed lumbar disk. Objective: To compare the effect of intraarticular injection of Ozone and steroids in improvement of clinical and cellular healing of knee osteoarthritis. Methods: in a randomized clinical trial, 70 patients with knee osteoarthrosis were included in the study. In Ozone group, 5 ml (35 μg/ml) of Ozone and in steroid group 5ml (50 mg) Triamcinolone were injected intraarticular. At 1,2,and 6 month patients were followed for pain scale, disability index and IL-1β and TNF-α serum levels were measured. Results: At 1 month after injection pain scale and disability index and IL-1β and TNF-α were decreased in both groups. However, at 2 and 6 month pain scale and disability index were significantly lower in Ozone group compare to steroid group (