Pelvic traction is reminiscent of the "rack" found in medieval torture chambers where you get physically stretched. I'm sure the outcome in the middle ages was unfortunate but, for back-pain sufferers the stretching from mild traction can take the pressure off a compressed nerve root and completely cure the pain. You'd think the relief would be temporary, which wouldn't be half-bad in itself, but I've seen cases where it seemed to confer a permanent cure. source; Hattiesburg

It seems great,but....

***Research has not been done to show who (if anyone) might benefit the most from this treatment. Studies comparing traction to other treatment (hot packs, manipulation, exercise) have not had consistent results.(The Spine Journal. February 2008. Vol. 8. No. 1. Pp. 234-242)

So,Nothing is miracle.