My name is Richard,I had surgery on both of my shoulders an after the surgeries both hands went numb.My doc did procedure call NEER-MUMFORD PROCEDURE,This is when the doc shorten your collarbone.the numbness came 8mos. after each surgery.I never had nothing wrong with my hands before the surgeries.my doc say its carpal tunnel,if this as happen to anyone out there I would like to hear about.