Good luck with your surgery. I'll be watching this as I've got a disk in my back that is protruding and hitting a nerve causing massive pain in my legs. They just injected to anti-inflam into both sides of my spine this week for the 4th time. It is working well at the moment but will only last about a month. I'll be looking into the knife at the end of this summer. It scares the shit out of me because I would die if they made the problem worse.