What I would recommend is talking with Mark (mmglobal) here to get the most amount of beneficial information.
Wishing you the best with whatever you'll do~ I have long lived with spine related problems though I have to say that even though chronic pain is a part of my life it's just not as bad as it was when I was contemplating a 3rd surgery ... then again I'm nearly 60 and probably just used to the limitations
Go forward and live your life! Good luck! Maria