Thank god for C-collars. Saving the public from death and disability since 1971 pic.twitter.com/L5FS5I4zjP
— Mike Abernethy (@FLTDOC1) December 30, 2014
Dr Bryan Bledsoe writes in 2015 on rigid and soft collars!
Why EMS Should Limit the Use of Rigid Cervical Collars
in 2015 in Queensland Ambulance service, the rigid collar will be replaced with a soft neck collar. Stay tuned for more updates on this!
Prehospital and Retrieval Medicine - THE PHARM dedicated to the memory of Dr John Hinds 
In regards to the C-Collar post, you might be interested in this literature review that myself and my colleague tried to get JPEC to publish. Michael A Freauf