Research recommendation(s) from an individual piece of guidance Guidance: Extracorporeal shockwave therapy for refractory greater trochanteric pain syndrome Date issued: 26 January 2011 Research recommendations coming out of this guidance NICE encourages further research into extracorporeal shockwave therapy (ESWT) for refractory greater trochanteric pain syndrome. Research studies should clearly describe patient selection, imaging, and treatment protocols. Outcomes should include functional and quality-of-life scores with at least 1 year of follow-up.