I am not sure if I'm talking about the same thing but I had a pain stimulator put in my spine I don't think it's attached to the spine by archers it just floats above the spine It doesn't bother me but the battery that its attaches to it is in my side underneath my skin and that is what bothers me, very, uncomfortable it stings sometimes and gets in the way of the waistband of my clothes. It lasted five years then had a new one put in that is supposed to last seven to ten years and it can be updated to new technology with a computer and I get it adjusted to my pain level in the office I have a remote to put it in the area I hurt the most.