title: Successful treatment of intractable complex regional pain syndrome type I of the knee with dorsal root ganglion stimulation: a case report.
abstract: OBJECTIVE
  To report on the efficacy of dorsal root ganglion stimulation in a patient with complex regional pain syndrome (CRPS) type I of the knee.
  
  
  METHODS
  A 48-year-old woman with CRPS type I of the right knee, diagnosed according to the Budapest criteria set, received DRG stimulation for intractable CRPS type I of the knee.
  
  
  RESULTS
  After a successful trial period with three DRG stimulation leads on spinal levels L2, L3, and L4 (covering 90% of the painful area of her knee), a definitive pulse generator was implanted. Three months after implantation, the entire painful area was covered, and the patient reported a numeric rating scale score of 1-2.
  
  
  CONCLUSIONS
  Placement of three DRG stimulation leads at levels L2, L3, and L4 in a patient with intractable CRPS type I of the knee resulted in major pain relief. We recommend further investigation of the effect of DRG stimulation on pain due to CRPS of the knee.
authors.affiliation: Center for Pain Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands.
authors.forename: Catelijne M
authors.initials: CM
authors.lastname: van Bussel
authors.forename: Dirk L
authors.initials: DL
authors.lastname: Stronks
authors.forename: Frank J P M
authors.initials: FJ
authors.lastname: Huygen
mesh_terms: D005260:Female; D005727:Ganglia, Spinal / Q000502:physiology*; D006801:Humans; D007717:Knee; D008875:Middle Aged; D010148:Intractable Pain / Q000628:therapy*; D012019:Reflex Sympathetic Dystrophy / Q000628:therapy*; D062187:Spinal Cord Stimulation / Q000379:methods*
keywords: Complex regional pain syndrome type I; dorsal root ganglion stimulation; knee; numeric rating scale; treatment