Hello Kye
cts affects the median nerve, this is the one which serves the thumb, index, middle & part of ring finger. The ulnar nerve serves the ring finger & pinky. I'm no expert on surgery or anatomy but as the problem only started since your cts surgery, I wonder if your surgeon maybe did something while he/she was in there? It can take a long time for the nerves to settle after surgery - up to a year or even more so you can still have symptoms for ages after the surgery. Next time you go back for a check up, ask lots of questions. Good luck & best wishes.
Lidia
[This message has been edited by lidiajamjar (edited 05-11-2003).]