Hi Alfred,
Have you tried the 'Facet injections'?
I have Facet disease, in the lower half of my back. I had some injections that didn't work, then the Ryzotomies, which did... thus avoiding surgery.
Each person is unique, having specialists that you know you can trust is a huge factor in plotting your course.
I do hope you are able to assemble your 'team' and get as much satisfaction that may be available to you.
All the best.