Is ADR always 100% success?

No it isn't, and I'm sure that no one would claim that it is, it is major surgery done in the location of the major blood vessels of the body, it's an extremely dangerous procedure, and not one to be taken lightly.

All surgeons do have their failures, I have seen some real " tragedies" done by surgeons who had only done a few procedures, and were endeavoring to do this on their own without help from an experienced surgeon.

What I would say is that some people who undergo ADR with an experienced surgeon, do not make a "full recovery" ie doing "Handsprings", but they are much better off than they were prior to the surgery.

Do all the less invasive things first, Physio, Massage,Injections etc before you have surgery. Its the last thing you should have done - - - - it is irreversible