If you are just reasonabley close to a teaching hospital, gather up your records and head that direction and get an opinion from an ortho/neuro spinal tag team. Just my opinion but the greater the challenge, the more you need to have the two spinal specialists who will bring his/her specialized gift to the operating table. I have had tons of spinal surgery and the "big boys" weren't a dime more expensive than a local ortho or neuro surgeon. We have one spine. Treat it well. Best wishes.