O i didn't realize you already had a diagnosis with Dr. Zeegers. Again, I am not sure of your spine pathology and it's possible that 2 adr's may not be possible in your case. It's really left up to the experts to decide if you need 2, or 1, or hybrid.
In any event, I wish you the best of luck and do a ton of research prior to making your decision
Cheers,
Karger