Extracorporeal Shockwave Therapy and Knee Osteoarthritis: Defining a Placebo Group

In the recently published study by Zhong et al, “A Randomized Controlled Trial on the Effects of Low-Dose Extracorporeal Shockwave Therapy in Patients With Knee Osteoarthritis,” the researchers studied low-dose extracorporeal shockwave therapy (ESWT) treatment in patients with knee osteoarthritis. They stated that ESWT was superior to placebo in both pain and functional improvement, as well as in terms of negative effects on the articular...