What is your surgeon advising? Usually the physician who has followed you through all the procedures will have a proposed plan of care or at least some options in mind. Even with a massive tear and two revision surgeries, there may be some treatment that could relieve your pain and restore some of your motion and function.
It could be that a rehab program might benefit you. A program of joint motion, muscle strengthening, and conditioning exercises might help return some of your function. A fourth revision surgery to repair the damage may or may not be in your best interests. Your surgeon is the best one to make this determination. He or she will view the imaging studies (X-rays, MRIs, CT scans) and compare them to what was found at the time of the first three procedures. That information along with the results of a current clinical examination will provide what’s needed to move forward with treatment.
It’s possible that there was other damage done to the shoulder when you first injured it that is complicating the results. Studies have shown that the more surgeries done on one shoulder, the less likely the chances are for a successful result.
You aren’t out of options yet! Depending on your age and the condition of the shoulder joint, soft tissues, and underlying bone, you might be a candidate for a total shoulder replacement. Again, your next step is to consult with your surgeon and possibly even get a second or third opinion. Gather all the information you can before making your final decision.