hi goblue. i hope everything goes well with your surgery tomorrow. i would personally get a second opinion from a neurologist and pm dr before doing surgery, but that's just my opinion. everyone is different. maybe you could show them some literature about rsd just in case you may have rsd. if you do they should be careful about doing surgery. if they do surgery then maybe they can do an intravenous nerveblock while you are getting surgery and i've heard that taking vit C prior and after surgery helps prevent spread if you do have rsd. whatever you do i will be praying for a speedy recovery. hopefully you don't have rsd and you will be fine. sending many soft hugs your way.
P.S. i've had rsd for almost five years now and have had three major surgeries since that time. though i have had some spread due to surgery the major spread i've had was due to accupuncture and just my rsd reaching stage three which i believe is atrophy and spread. so not all people get spread from surgery but it is possible so being that i am not a dr i would definitely get a second opinion prior to surgery if i were you. but that's just me. and though its hard try not to stress because that just makes symptoms worse. sending prayers and soft hugs your way.