I want to find a Pain Management consultant to help me deal with my lower back pain--do not want surgery suggested by orthopedic surgeon. Have tried epidurals over a year ago--they did not work. What about Radio-Frequency Denervation (R.F.D.)

Optional Information:
Female , Age: 84

Already Tried:
Had a series of 3 epidurals a year and half ago--did not help at all. Is there a doctor in Pittsburgh area who does Radio-Frequency Denervation.