Implementation of new guidelines in the prehospital services: a nationwide survey of Norway.

Background: A debate regarding the potential harmful effects of rigid neck collar and backboard usage among prehospital and hospital care providers in Norway provoked the development of an evidence-based guideline. "The Norwegian guideline for the prehospital management of adult trauma patients with potential spinal injury" was developed with rigorous scientific methods and published in 2016. An e-learning course was developed in parallel.