title: Effectiveness of Computed Tomography Guided Percutaneous Radiofrequency Ablation Therapy for Osteoid Osteoma: Initial Results and Review of the Literature.
abstract: BACKGROUND
  The aim of this retrospective study is to determine our experience of technique success rate, complications and clinical results in long term follow up for computed tomography (CT)-guided radiofrequency ablation [RA] therapy for osteoid osteoma (OO).
  
  
  METHODS
  We performed RA therapy to 18 patients with OO referred to interventional radiology from other clinics primarily from orthopedics; between January 2011 to May 2014. Daytime and nighttime pain intensity of 18 patients was noted according to visual analog scale (VAS). After procedure pain intensity was compared with before one. We also discussed other factors can affect it.
  
  
  RESULTS
  All procedures were completed technically successful for all patients [100%]. We did not experience any major complication or mortality. However we had 3 minor complications. Pain came back in 1 patient after 5 months from procedure and it was considered as recurrence. Dramatic pain intensity fall was seen in patients after procedure, both daytime and nighttime. However we did not find and statistically significant change in comparison of pain intensity reduce and time needed to return back to routine life when using patients demographic data and lesion size.
  
  
  CONCLUSIONS
  CT guided RA therapy of OO is minimally invasive, effective and secure procedure.
authors.affiliation: Department of Radiology, Okmeydani Education and Research Hospital, Istanbul, Turkey.
authors.forename: Erdal
authors.initials: E
authors.lastname: Karagöz
authors.affiliation: Department of Radiology, Okmeydani Education and Research Hospital, Istanbul, Turkey.
authors.forename: Deniz
authors.initials: D
authors.lastname: Özel
authors.affiliation: Department of Radiology, Okmeydani Education and Research Hospital, Istanbul, Turkey.
authors.forename: Fuat
authors.initials: F
authors.lastname: Özkan
authors.affiliation: Department of Radiology, Okmeydani Education and Research Hospital, Istanbul, Turkey.
authors.forename: Betül Duran
authors.initials: BD
authors.lastname: Özel
authors.affiliation: Department of Radiology, Okmeydani Education and Research Hospital, Istanbul, Turkey.
authors.forename: Özgur
authors.initials: Ö
authors.lastname: Özer
authors.affiliation: Department of Radiology, Okmeydani Education and Research Hospital, Istanbul, Turkey.
authors.forename: Zafer Ünsal
authors.initials: ZÜ
authors.lastname: Coşkun
keywords: Catheter Ablation; Osteoma, Osteoid; Tomography, Spiral Computed