<s>[INST] I have had three shoulder surgeries on my right shoulder. The first was in 1991, second one was 2004 after a fall on an outstretched hand, and the most recent was in November 2017 where they reattached two tendons ( supraspinatus which was retracted 5 cm and the infraspinatus which was also torn but not retracted). I also had a tendosisis of my bicep tendon. The bicep did heal, but the two tendons did not heal as it was explained that the retracted tendon was there for several years and fatty tissue filled in the space and reduced the integrity of the tendon. It is now suggested for me to have a reverse should replacement but I am concerned that my surgery will not be a success. I also am wondering if I will have full range of motion and strength in the arm afterwards. I am 63 and otherwise in good health, but do have some arthritic tissue. What is the success rate of this surgery and my expected ability to function afterwards? [/INST] Hi, Reverse shoulder replacement is designed for rotator cuff arthropathy like in your case where muscle repair is not successful. It's a good procedure. Though you will never have a full range of motion, you will be able to do all your daily routine activities. You are 63 years and your shoulder will never have that strength that you had in your young age after any surgery. So you should have realistic expectations, and can go for surgery. Hope I have answered your query. Let me know if I can assist you further.  </s>