I had this injury 20 years ago. It’s likely advancements have been made. I rehabbed after the dislocation and was back to 100% about 2 months later, only to have it dislocate again 8 months after that. After the 2nd dislocation, surgery was required because there was too much ligament damage. Wasn’t back to 100% until 6 months post-surgery. Hopefully he can rehab and not have it happen again but who knows. Tatis tried to do this with his shoulder and it kept popping out, eventually had surgery. Fingers crossed!