There's a guy in LA, Aaron G. Filler, MD, PhD, who used to be on the UCLA faculty, who's been doing this surgery - under an MRI thank you - for years. Although his website used to list a number of unpublished papers dealing with the treatment of CRPS, I can't seem to find them now. Here's his specific page on Nerve Entrapment, you can link to the rest of his site from there: http://www.nervemed.com/nerve-entrapment/

What I'm advised is that there may be just as much risk in creating new scar tissue/adhesion in the surgery as you were attempting to alieviate in the first place. That said, I spoke to a lady a few years ago who swore by the procedure. So who knows?

Mike