My Back is crumbling also, I'm 25yrs out, but I have archonditis scar tissue and I still remember the pain and disability that followed after my surgeries, last time. I don't have the fitness or the strength to overcome that now, so I turned it down. I was also offered with great pressure these steriod/anesthetic mix injections by my GP. The clinic I was recommended to, turns out it does nothing else, one size fits all. I turned them down also, now it turn's out there not even approved. I have no faith left in these guys, they try it, you pay for it. I've paid enough. Nothing they have done on me to date, surgically has worked, I was better off without it.
I've noticed a lot of info has suddenly appeared on the net, concerning failed back surgery and Arachconditis, makes me wonder why. Most I've read recommend's against further surgical intervention, but if earlier attempts improved you I guess your in the lucky group, if your long term result wasn't good first time, there's no evidence that I can see that states this time will be better. I'm staying with my med's and riding that plan into the ground, they've had enough out of my life, I'll give them no more. I hope your in the lucky group and you improve.