I just went to Dr Welch in Philadelphia and he told me if he did surgery I would have a 90% to 95% chance in decreasing the pain by 50%. He said I would still have a sitting problem. He has done 500 Tarlov cyst surgeries. If I still won’t be able to sit without pain I don’t think I will let him do surgery. I am going to Dallas, Tx to see Dr. feigenbaum who socializes in surgery on Tarlov cysts. If you Google him you can find out a lot about Tarlov Cysts, surgery and recovery. I guess I will find out more about the % surgery will decrease the pain. I hope I get a better response since he is a specialist.