Comparing the efficacy of 2 techniques for piriformis muscle injection proceed with caution

Bernhard Moriggl¹, Barry Nicholls, Philip Peng

• ¹Department of Anatomy, Histology and Embryology, Innsbruck Medical University, Innsbruck, Austria Taunton and Somerset NHS Foundation Trust, Musgrove Park Hospital, Taunton, Somerset, United Kingdom University Health Network, University of Toronto, Toronto, Canada.