title: Pulsed radiofrequency of lumbar nerve roots for treatment of chronic inguinal herniorraphy pain.
abstract: BACKGROUND
  Inguinal hernia repairs are commonly performed and although not seen in a majority of patients, chronic inguinal pain can be a debilitating state resulting after inguinal hernia repairs. Treatment options exist, including pharmacological and surgical management, but with associated risks and side effects.
  
  
  METHODS
  In this case series report, five patients with chronic inguinal pain were selected. After initial positive response to T12, L1 and L2 nerve root blocks, pulse radiofrequency (PRF) was performed.
  
  
  RESULTS
  All patients reported 75% to 100% pain relief lasting from six to nine months.
  
  
  CONCLUSIONS
  Several hypotheses have been proposed, including selective delta and c-nerve fiber destruction, upregulation of intermediate early gene expression (IEG) and increase in c-fos protein that modulated pain transmission.
  
  
  CONCLUSIONS
  The mechanism of action of pulsed radiofrequency remains unclear. This case study demonstrates the effectiveness of minimally invasive neurodestruction of T12, L1 and L2 nerve roots utilizing Pulse Radiofrequency fields.
authors.affiliation: Mount Sinai School of Medicine, Department of Anesthesiology, Pain Medicine Division, New York, NY 10029, USA. dimarozen@hotmail.com
authors.forename: Dima
authors.initials: D
authors.lastname: Rozen
authors.forename: Uzma
authors.initials: U
authors.lastname: Parvez
mesh_terms: D000328:Adult; D005260:Female; D006552:Hernia, Inguinal / Q000150:complications; D006801:Humans; D008159:Lumbar Vertebrae / Q000473:pathology / Q000528:radiation effects*; D008297:Male; D008875:Middle Aged; D009407:Nerve Block / Q000379:methods*; D010146:Pain / Q000209:etiology / Q000601:surgery*; D010147:Pain Measurement / Q000379:methods; D011674:Pulse; D013126:Spinal Nerve Roots / Q000473:pathology / Q000528:radiation effects*; D016896:Treatment Outcome