I do them frequently for chronic shoulder pain of all types. I think I'm doing 3 this AM.
I use US to do it.
It is pretty good for OA, chronic impingement, post op, and post stroke shoulder pain. Adhesive capsulitis is hit or miss, and it sometimes helps for that (worst Dx ever IMO).
I had one pt who had like 8 weeks of shoulder numbness after the injxn, but other than that haven't really had any problems.