title: [Clinical analysis of peripheral branch evulsion of trigeminal nerves on treatment of trigeminal neuralgia:report of 136 cases].
abstract: OBJECTIVE
  To investigate the clinical effect of peripheral branch evulsion of trigeminal nerves on trigeminal neuralgia, especially on the aspect of odynolysis and recurrence.
  
  
  METHODS
  136 patients with trigeminal neuralgia underwent peripheral branch evulsion of trigeminal nerves were retrospectively reviewed with three years follow-up period. The odynolysis and recurrence of pain were observed.
  
  
  RESULTS
  Excellent effect was obtained in one patient underwent branch I evulsion. Excellent, good, and no effect were obtained in 57.7% (45/78), 34.6% (27/78), and 7.7% (6/78) of patients underwent branch II evulsion, respectively, with the total effective rate of 92.3%. Excellent and good effect was obtained in 91.1% (82/91) and 8.9% (9/91) of patients underwent branch III evulsion, respectively, with the total effective rate of 100%. During the 3-year follow-up period, no pain recurrence occurred in the patient underwent branch I evulsion, pain recurrence occurred in 24 out of 68 patients underwent branch II evulsion, and in 3 out 72 patients underwent branch III evulsion. Furthermore, pain of branch II occurred in 6 patients underwent branch III evulsion, and pain of branch III occurred in 2 patients underwent branch II evulsion.
  
  
  CONCLUSIONS
  The factors of pain recurrence and odynolysis are complicated. Clinically incomplete evulsion may be the main factor. Standard criteria are necessary for identification of pain recurrence and ectopic pain. Electrothermal treatment though infraorbital foramen, buccal nerve evulsion, and ligation of broken nerve are effective to treat odynolysis and pain recurrence.
authors.affiliation: Department of Stomatology, Second Affiliated Hospital, Nanhua University, Hengyang, Hunan Province, China. caofangyun415@sina.com
authors.forename: Fang-Yun
authors.initials: FY
authors.lastname: Cao
authors.forename: Xi-Qing
authors.initials: XQ
authors.lastname: Tang
authors.forename: Xiao-Sheng
authors.initials: XS
authors.lastname: Fan
authors.forename: Xie-Jie
authors.initials: XJ
authors.lastname: Wu
authors.forename: Rong-Lin
authors.initials: RL
authors.lastname: Tang
authors.forename: Yun-Huan
authors.initials: YH
authors.lastname: Tang
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D012008:Recurrence; D012189:Retrospective Studies; D016896:Treatment Outcome; D014276:Trigeminal Nerve / Q000503:physiopathology; D014277:Trigeminal Neuralgia / Q000628:therapy*