Those individuals who obtain significant (≥ 50% in groups 1 and 2,3) but temporary (< 1-month) relief will undergo radiofrequency (RF) denervation at their 1-month follow-up. In group 3, those patients who do not experience pain relief at 1-month will undergo RF denervation regardless of the pain relief they experience (as many practitioners in the military and civilian practices do without diagnostic blocks).1-3 Participants in Groups 1 and 2 who experience prolonged relief from their diagnostic/ therapeutic blocks with LA and steroids will not undergo RF denervation until their pain returns. Those individuals who experience prolonged relief lasting > 6 months will be given the option of repeating the diagnostic/ therapeutic block. In Groups 1, 2 and 3 patients who experience prolonged relief from the diagnostic blocks, follow-up visits will be at 1-month, 3-months and 6-months after the block, or until their pain relief wears off. In those who undergo denervation based on a positive block, follow-ups will be performed 1, 3 and 6-months after the denervation provided they continue to experience significant (> 50%) relief at each follow-up. Those individuals who fail to experience significant relief after denervation will be unblinded and exit the study per protocol.