Do your drs consult with each other to help figure out your ongoing issue?
Scar tissue hasn't been mentioned or doesn't seem to be a problem?

If you had the c ribs the whole time, why didn't they remove them during the first surgeries?

For the ribs to grow back, were they not fully removed the first time?
I think in 08 only a partial section cut out was still the standard practice.
Now most remove the whole rib first time around..

Sometimes another independent TOS specialist opinion is a good idea if you can do it.
Just to get fresh eyes on the whole situation..