Very interesting. I had sciatica off and on for a few years after falling out of a semi trailer flat on my azz. I ruptured a disc and bulged one in my lower lumbar. My chiro nursed me back to health. I had a serious talk with my MD and she asked me if I was getting relief from my chiro. I said yes and she suggested I continue seeing her instead of having surgery. I haven't had bad sciatica since and if I do a adjustment makes it go away.