Comment on "Effect of extracorporeal shockwave therapy versus intra-articular injections of hyaluronic acid for the treatment of knee osteoarthritis"

We read with great interest the study by Lee et al. titled “Effect of Extracorporeal Shockwave Therapy Versus Intra-articular Injections of Hyaluronic Acid for the Treatment of Knee Osteoarthritis. The authors were able to evaluate and compare the effects and outcomes of the extracorporeal shock wave therapy and intraarticular injections of hyaluronic acid in patients with knee osteoarthritis. This research is considered relevant and interesting, especially because it is noted that the authors compare an invasive therapy, such the intraarticular injections, with the administration of an extracorporeal show wave therapy, which is notably a kind of therapy that does not involve the interruption of the integrity of the skin. It is noted that the results from the study are promising from a clinical aspect