I would MUCH rather have a NEUROSURGEON do my surgery. That's who I've always had, and that's who I'd have again if I COULD have surgery, but I can't. Neurosurgeons are trained in the central nervous system, whereas the Ortho's deal mostly in bone. So I'd definitely want the Neuro since you're concerned with the nerves & central nervous system.
Best of luck & God bless. Let us know how things come out, ok? Hugs, Lee