I had a very severe rotor cuff injury back in 2006, I was seen by five specialist and they all were in agreement that surgery was not an option for me, what I had was a complete tear off and retraction where the torn tendon retracted across my back and could not be repaired. I was forced to take a disability retirement by my employer and my employers doctor. I lost $6000.00 per year on my retirement since I had to retire four years early. What I am trying to say is do not force yourself to do what you shouldn't be doing, it will bite you big time.
Listen to your Dr and do as he says or pay the price. Since you have dislocated it four more times, I guess you are willing to pay the price.