title: [Minimally invasive treatment of osteoid osteoma with CT-guided radiofrequency ablation in long-term follow-up].
abstract: OBJECTIVE
  We treated 74 patients with symptomatic osteoid osteoma by CT-guided radiofrequency ablation (CT-RF) and investigated the rate of success and complications.
  
  
  METHODS
  74 patients were treated by CT-RF between March 1997 and August 2001. The nidus was first located by thin-cut CT sections and then penetrated by a 2 mm coaxial drill or an 11-gauge Jamshidi needle followed by insertion of the RF probe and heat application for a period of 4-6 minutes at 90 degrees C. We investigated the recurrence of pain, complications, hospital stay, duration of postoperative pain and function.
  
  
  RESULTS
  Nine recurrences occurred after the initial procedure, and one after a second CT-RF (rate of primary success 87.8 %, rate of secondary success 88.8 %; 98.6 % success rate in all). There was one minor complication in one case.
  
  
  CONCLUSIONS
  CT-guided RF ablation cured 73 of 74 patients (98.6 %). It is a safe, simple, cost effective and minimally invasive treatment, which has stood the test of a long-term follow-up and we suggest it to be the treatment of choice in most cases.
authors.affiliation: Klinik und Poliklinik für Allgemeine Orthopädie der Westfälischen-Wilhelms-Universität Münster.
authors.forename: C W
authors.initials: CW
authors.lastname: Cichon
authors.forename: F
authors.initials: F
authors.lastname: Böttner
authors.forename: R
authors.initials: R
authors.lastname: Rödl
authors.forename: W
authors.initials: W
authors.lastname: Winkelmann
authors.forename: N
authors.initials: N
authors.lastname: Lindner
mesh_terms: D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods*; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods*; D010017:Osteoma, Osteoid / Q000000981:diagnostic imaging / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016896:Treatment Outcome