Last May I had a Spinal Cord Stimulator implanted in my back to control pain from degenerative disc disease in the lumbar back. It is like having a TENS unit only it is inside you. The technology is from Boston Scientific.
See it at:
http://www.controlyourpain.com/index.cfm?langid=1
“Back” in 1977 I was in excruciating pain from a herniated disc. I guess that was sciatica. Finally my orthopedic surgeon in Rome ran out of other options and performed a laminectomy. That was 6/6/77 and I have never had one twinge of pain since.
Amazing how many different options there are.