I too have a Tarlov Cyst and had the fibrin glue injection done at John Hopkins on March 8th. The pain subsided for about 5 days and now is back and gradually increasing. I was told was a 65-70% success rate, and live only 3 ours from KC where Dr. Fiegenbaum. I was told had to be three months before reconsider the fibrin glue procedure again if still in pan. I really don't want to go 3 months with the pain and narcotics make me sick. Can you share your experiences and what all you tried! Thanks so much!