Dislocated my shoulder over 20 years ago, set it back in without going to see a Doctor.  Over the years my entire shoulder cartilage has been grinding down to the bone.  While in Arizona last year had Xrays done and Doctor told me my should was beyond stem cell therapy and to consider invasive surgery.  To date, been living with the pain which has affected my ability for night time sleep, as I am always sleeping on my good side.