Aloha again Sara,
In my opinion, either one would be more than qualified to help you, however, each neuro and ortho has there own specialties or disciplines...I know, I know just what you wanted to hear, you should do a little homework on your surgeons and see if they have an area which they specialize in, if they have any integrity at all they will be up front with you and if they feel that you would be better served by another surgeon, they should, and the operative word here is should, refer you to someone they know would be able to help you. I wasn’t much help was I?
An orthopedic surgeon is more of a mechanic, and a neurosurgeon usually gets involved if nerves or spinal cord is at issue, my guess, with your particular situation you will probably end up with a neurosurgeon, but that's just my opinion. And again, they each may have their respective specialties (spine, hips, knee, sports, neck etc.) Good Luck, I will pray for a successful and healthy outcome.