“…In our database search and secondary review of references we located 47 rhizotomy studies that generally concerned spinal or facet pain and facial pain syndromes (Table 1). In the majority of the studies (34 of 47) the data reported were relevant to either TN (Table 1, first section; 20 studies) 8,13,14,17,63,79,90,92,95,102,118,122,133,135,142,150,160,163,165,166 or LFS (Table 1, second section; 14 studies 6 ,28,30,43,70,74,88,91,112, 117,130,145,146,153 ), whereas in the remainder the effects of rhizotomy on a variety of truncal and extremity neuralgias ( Table 1, third section; 1 study 87 ), cervical pain (Table 1, fourth section; 9 studies 7 ,45,75,78,113,132,147,148,151 ) or cluster headaches (Table 1, fifth section; 3 studies 19,93,134 ) were evaluated.…”