Hello,
Long ago a member that had both RSD & TOS got a stim implanted and it was helpful for her.

We have a SCS subforum here-
http://neurotalk.psychcentral.com/forum118.html

Many members from our whole site post on there with the latest info on stim & implantable pain control.

You could have internal scarring built up after all these years, have any of the drs or surgeons mentioned that? It is possible to clean it out, but more may come back over time..