title: Bipolar radio frequency ablation of spinal neoplasms in late stage cancer disease: a report of three cases.
abstract: METHODS
  Case report.
  
  
  OBJECTIVE
  To avoid neuronal damage by using the bipolar radio frequency ablation of spinal tumors.
  
  
  BACKGROUND
  Radio frequency ablation of tumorous masses is an established procedure and is increasingly used as pain therapy of unresectable spine tumors. Ablation of lesions adjacent to vulnerable structures remains a challenging task because flow of current is insufficiently controlled by monopolar probes. Using this technique, a prediction of the induced necrosis accurate to the millimeter is not feasible.
  
  
  METHODS
  Three patients with metastases of the spine were treated using the bipolar radio frequency ablation.
  
  
  RESULTS
  In all 3 cases collateral damage of neuronal structures could be avoided even though tumorous masses touched the cauda equina or were very close to vulnerable structures, respectively. The induction of necrosis was predictable to the millimeter.
  
  
  CONCLUSIONS
  Ablation of tumorous masses adjacent to neural structures by bipolar technique, is feasible and predictable. Spinal cord damage can be avoided by exact planning of the induced necrosis.
authors.affiliation: Institute of Neuroradiology, University Hospital of Magdeburg, Magdeburg, Germany. angelos.gazis@med.ovgu.de
authors.forename: Angelos
authors.initials: A
authors.lastname: Gazis
authors.forename: Oliver
authors.initials: O
authors.lastname: Beuing
authors.forename: Boris
authors.initials: B
authors.lastname: Jöllenbeck
authors.forename: Jörg
authors.initials: J
authors.lastname: Franke
authors.forename: Martin
authors.initials: M
authors.lastname: Skalej
mesh_terms: D000328:Adult; D000368:Aged; D017115:Catheter Ablation / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D010166:Palliative Care; D013125:Spinal Neoplasms / Q000556:secondary* / Q000601:surgery*; D020196:Trauma, Nervous System / Q000517:prevention & control; D016896:Treatment Outcome