@closer0043 It's very possible that your pathology at C5/C6 may be producing overlapping (similar) symptoms and weakness as the TOS. If one problem is operated on and theoretically resolved, you may still have the symptoms from the other problem. The diagnostic waters get very muddy when you have both cervical issues and TOS. I was evaluated for both at Mayo and the decision was that the cervical issue was the bigger problem. My TOS did get worse after cervical surgery because of the inflammation in the area from the surgery, but that was temporary. I do still do home stretches for the TOS as best I can.