Comparison of efficacy of corticosteroid injection versus extracorporeal shock wave therapy on inferior trigger points in the quadratus lumborum muscle: a randomized clinical trial

"Corticosteroid TPI was more effective compared to ESWT in short-term controlling of pain and disability caused by myofascial pain syndrome of QL muscle. However, after 4 weeks treatment, ESWT further improved the quality of life and disability and ..." h

Compare corticosteroid + shockwave for trigger points in quadratus lumborum. N=54 RCT. Steroid better short term but shockwave clear lead for mid + longer term benefits on pain, function + more: Eftekharsadat et al (2020) BMC Musculoskelet Disord 21:695 h