 [ Symptoms ] i am a 63 y old male i have some cervical arthritis my left arm is considerably weaker than my right r they related [ Disease ] i have to see your mri to really make that call personally i have to two rotator cuff repairs both failed and may be facing a third surgery in the future each person is injury is really unique so it would really be impossible to blindly know if you need surgery or not unless i was intimately involved in your case i do not even know your age or how this incident occurred i can tell you that orthopedists are surgeons and surgeons do like to perform surgery your cortisone injection was most likely for inflammation and pain so i hope that helps but it will not fix a complete tear