The effect of extracorporeal shock wave therapy on myofascial pain syndrome
This 2012 randomized controlled trial assessed the efficacy of extracorporeal shock wave therapy (ESWT) in treating myofascial pain syndrome (MPS) of the trapezius muscle. Thirty patients were divided into two groups: one received ESWT (1,500 pulses per session, once weekly for three weeks), and the other underwent trigger point injections