Intra-articular Oxygen-ozone Therapy for the Treatment of Knee Osteoarthritis Compared With Hyaluronic Acid

Knee osteoarthritis is a very common pathology, characterized by pain, stiffness and functional deficit. The various therapeutic options used include anti-inflammatory drug treatment, physiokinesitherapy, minimally invasive procedures and, finally, in non-responsive cases, surgical treatment. To date, several studies have been conducted on the intra-articular use of oxygen-ozone in knee osteoarthritis and its potential therapeutic benefits. However, the methodological quality of the RCTs available in the literature is not satisfactory, so it is necessary to define a standardized protocol for therapy and procedures. The aim of this study will be to develop a rigorous protocol to evaluate the effectiveness of intra-articular oxygen-ozone therapy (OOT) in knee osteoarthritis and compare it with injection therapy with hyaluronic acid (HA), currently widely used in the treatment of knee osteoarthritis.