hey, its really sad to hear about your back.
i know how you feel i have the same problem but not as bad as yours, I've been told that the older i get the worse its going to be, now at school i can only sit or stand in one position for about 20mins before it starts to lock on me which puts me in a lot of pain. unfortuately its genetic so nothing can be really done for me...
However i wish you luck, and for you to keep your spirits high, nothing like positive thinking to help out.
Hellfire.