title: Dorsal root ganglion pulsed radiofrequency for the management of intractable vertebral metastatic pain: a case series.
abstract: OBJECTIVE
  Metastatic bone pain is characteristic of cancer pain and is a form of refractory cancer pain, as the pain includes not only nociceptive but also neuropathic pain. Although some drugs are effective in the management of painful bone metastases, pain while moving is one of the most refractory forms of pain. Although pulsed radiofrequency (RF) dramatically reduces neuropathic pain, chronic pain, and vertebral metastatic pain, the number of cases reported in these studies was very small (five or less).
  
  
  METHODS
  Case report.
  
  
  METHODS
  Single pain center.
  
  
  METHODS
  Fifteen patients suffering from intractable vertebral metastatic pain.
  
  
  METHODS
  Dorsal root ganglion (DRG) pulsed RF.
  
  
  METHODS
  A numerical rating scale (NRS) of pain at rest and while moving.
  
  
  RESULTS
  Almost all patients experienced sound pain relief after the pulsed RF treatment. There were no severe side effects reported.
  
  
  CONCLUSIONS
  DRG pulsed RF procedure provided sound pain relief for patients with intractable vertebral metastatic pain. Metastatic bone pain is characteristic of cancer pain and is a form of refractory cancer pain, as the pain includes not only nociceptive but also neuropathic pain. Although some drugs are effective in the management of painful bone metastases, pain while moving is one of the most refractory forms of pain. DRG pulsed RF procedure provided sound pain relief for patients with intractable vertebral metastatic pain.
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Young-Chang P
authors.initials: YC
authors.lastname: Arai
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Makoto
authors.initials: M
authors.lastname: Nishihara
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Yamamoto
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Maki
authors.initials: M
authors.lastname: Arakawa
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Miki
authors.initials: M
authors.lastname: Kondo
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Chiharu
authors.initials: C
authors.lastname: Suzuki
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Akiko
authors.initials: A
authors.lastname: Kinoshita
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Kazuyo
authors.initials: K
authors.lastname: Kambara
authors.affiliation: Multidisciplinary Pain Center, School of Medicine, Aichi Medical University, Aichi, Japan.
authors.forename: Tatsunori
authors.initials: T
authors.lastname: Ikemoto
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005727:Ganglia, Spinal; D006801:Humans; D008297:Male; D008875:Middle Aged; D059408:Pain Management / Q000379:methods*; D010148:Intractable Pain / Q000209:etiology / Q000628:therapy*; D061208:Pulsed Radiofrequency Treatment / Q000379:methods*; D012189:Retrospective Studies; D013125:Spinal Neoplasms / Q000150:complications / Q000556:secondary
keywords: Dorsal Root Ganglion Block; Metastatic Bone Pain; Pulsed Radiofrequency