It’s a mountain biker’s creepiest nightmare - a spine injury is about the worst thing that can happen to you out there. Why? While other injuries only affect one area of the body, a broken spine can paralyze you for good. Broken vertebrae can result in serious damage or even death. Alan Selby suffered fatal injuries during a motocross race. Right next to the racetrack, however, was Dr. Chris Leatt. And he decided that things can't go on like this!