A couple of years ago I researched tarsal tunnel surgery, as an orthopedist had recommended it for me. What I found at that time was that the success rate for that surgery was poor. And there is always the risk that surgery will cause scar tissue that might create a problem of its own. If you are considering it, Tom, I would research it very well, and maybe even get a second opinion. Just carefully consider the risks of anesthesia, risks of infection or scar tissue, et al before jumping into it. It's so tempting to want a "fix". Maybe this is the best thing for you, but be careful.