Errr.. why?
Anyways, the social system in america is that you buy your own private heatlh care insurance, and depending on the quality of it, it will pay some or all of your health care costs. Problem is insurance must be damn expensive if you're a pro skier, seen as most insurance companies ask (in fact all) for background info to evaluate the risk in covering you and then chare your accordingly. If you aren't insured you will pay for your health care. I believe there is something for the extremely poor who can't afford insurance though.
In Canada, everyone is covered by the same, government insurance policy. So anyone who gets sick in any way is taken careof for free. Problem is that health care system, even though it's mostly good, is sometimes too long since everyon e is on the same list. Somewhere in between the two would be better.
So yeah, a Canadian skier like Marc-André should get all the healthcare he needs for free. But for paralysis, I of course don't really know the specifics.