I'm lazy, so I just copy paste my comments in an older thread with a similar topic
Had two discs ruptured (C4/C6) in 2008. First weeks after the accident I thought I'd never be able to ride (horse or board) again. Had no feeling in left fingers for months and electrical buzzes in the arm whenever I reclined the head for years. Was very afraid of backwards falls the first seasons. Besides of trying to get stronger neck muscles, it helped me to ride with a neck stabilizing collar. First year a thick one, next season a thiner one, actually designed from a horse riding outfitter but it was helpful for snowboarding too.
Out of the USG catalog:
It won't absorb all energy of a backwards fall but it would prevent fast/extreme reclining.
Jones Flagship 158, Ride Farah 153, Jones Solution wmn 156, Rad Air Jewel 159.5, Jones Mothership 156
Ride Fame, Burton Escapade, Spark Afterburner
The average human has one breast and one testicle ~ Des McHale