Re: Neurosurgeon or orthopedic surgeon?
Absolutely, get (at least?) two opinions, one from each.
The important thing is to make sure they specialise in spinal problems (i.e., not a neurosurgeon that specialises in the brain, or an orthopaedic surgeon that specialises in the knee!).
From what I've heard, for problems that specifically stem from the bones and joints (e.g., instability, stenosis caused by bony overgrowths, facet joint problems etc... an orthopaedic surgeon is better. But I've also heard that spinal neurosurgeons are better as they pay more attention to the nerves (the things that cause the pain!). Either way, as long as they specialise in the spine, you should be in good hands.
I've always wondered why they can't have one of each present during the operations - I know it would make me feel a lot more confident!
Good luck with the appointments