back in the 80's when I was trying to figure out what was wrong with me, my neuro at the time, did some nerve conductivity studies that supposedly found an impingment in my ellbow.
I had surgery on it, an ulner translocation, that was an absolute waste of my time, as it did not help the bradykinesia in my right arm at all!!!!

My suggestion to you is this, get a second opinion before any surgery!

Personally I think conductivity studies are suspect at best.

sorry to hear of your difficulties.

your friend,

Charlie