unfortunately there is really no way to predict a "100%" success after a surgery. i do not have the facts related to your tear or your medical history but rotator cuff surgeries can be tricky. some people have wonderful outcomes; others do not. personally i have had two surgeries about six months apart on my left shoulder and it failed. not wanting to have a third surgery i am currently just living with it. like you my right shoulder is now causing me some pain. i am older than you. have a heart to hear talk with your surgeon. while many will be very optimistic about your outcome even the best surgeons will never predict a 100% positive outcome. as a patient you need to carefully weigh the pros and cons with your surgeon. surgeons love to do surgery and they all claim they are the best but don't hesitate to get a second opinion. asks lots of questions especially about the technique they will be using. older surgeons often do old surgeries and may not offer you the latest technology. younger surgeons may know the latest techniques for surgical repairs but may not have the experience. in the end you are the one that must give the go ahead.
what to expect after rotator cuff surgery. i have also had each shoulder done. right shoulder 12 yrs ago never gave me a problem until an injury at work so now i have to have it done again along with an open hand carpel tunnel also on my right. i am in my late 40's an i'm scared of what to expect. my left shoulder was done in 2012 and it still is not 100%. how long i wonder will i be after these 2 surgeries or will i ever get back to 100%?