Hi Jmr and welcome to the pain boards! I have a fusion and chronic pain as well, but I have never had the proceedure you mentioned, although I have heard of it, and I'm sure there are people here who can give you specific advice.
You can also try the back board, I go there too, even though my fusion is also in my neck, we're still considered one of the 'spineys'.
Again, welcome, and I'm sure someone will be able to help you out.
Your Friend, Fabby