To make a long story short my initial knee pain was due to destroying all the cartilage under both patellas from many years of running. Even after knee replacements the pain persisted. After ruling out tendinitis and noting the pain was identical in both knees, nerve problems seemed a logical explanation. The theory is the nerves were excited for so many years they won't turn off. It is still a bit of a mystery. The SCS has worked really well so far, but I have not done much more than walk around since the surgery. I have been told to take it easy for 8 weeks. It will be interesting to see what happens when I become more active.

I'm not sure what my surgery was called. Two parallel electrodes go along the spine and they are connected to a unit implanted in my lower back. I assume that involves percutaneous leads.