Someone on the MLB Network (a former general manager who was a guest -- can't remember his name) said that no pitcher has successfully come back from this type of surgery. I don't know if that's 100% true, but...
It's not no pitcher, but it's been a long time since a guy over 30 has come back successfully - see
https://blogs.fangraphs.com/phil-hughes-and-the-sobering-history-of-thoracic-outlet-injuries/. Short story is that Kenny Rogers and Josh Beckett were okay after, but everyone else over ~26ish turned into dog turds afterward.
