Lon,
My Dad had four of these injections, after his failed spinal surgery. He said the injections only worked for about a week and he isn't going back for anymore. The risk of being anesthetized is not worth the benefit that he got from the injections.
Like everything else, you have to see how, and if it works for you, so at least try it once. Then you can weight the benefits versus the risks and make your own decision about their worth.
Gay
