North American Spine:
Theoretically that they do can work. I called them and I got a sales pitch like the DXR 9000. I think that NAS helps some people and that the technology is valid but from what I read their surgeons are hacks and there are no peer reviewed studies.
A laser fired in the disk can make it better but the surgeon needs skill and training. I don't think the NAS jokers like most American surgeons are well trained. Just my opinion. You may want to roll the dice but before you do read this.
http://radiology.rsna.org/content/225/3/895.full.pdf
http://radiology.rsna.org/content/225/3/895.full.pdf
Traction works. Learn how to do it. I am too far gone for the disk to recede but some of you may find it helpful. I still try it. I don't exceed 30 lbs for cervical.