Welcome, but sorry you are here. You may have seen this long, important topic already:
http://www.adrsupport.org/forums/f51...ications-9620/
It sounds like you are really struggling to get out of pain, while also researching the best treatment options. Thirty years of aggravation? My gosh.
Facet arthosis, especially if advanced, is definitely a contraindication. So be careful as you research and talk to doctors!