title: Percutaneous treatment of osteoid osteoma by CT-guided drilling resection in pediatric patients.
abstract: BACKGROUND
  Osteoid osteoma is a painful, benign, small osteogenic bone tumor. For a long time, surgery was the only treatment for these lesions. Different minimally invasive therapeutic techniques have been proposed. We report our experience in the treatment of osteoid osteoma by CT-guided drilling resection in pediatric patients.
  
  
  OBJECTIVE
  To evaluate the efficacy of CT-guided percutaneous drilling resection as a minimally invasive therapy for osteoid osteoma in children.
  
  
  METHODS
  Over a 5-year period, 18 patients (age range 6-17 years, mean age 11.6 years) with osteoid osteomas (femur, n=10; tibia, n=5; humerus, n=2; vertebral body, n=1) were treated with this technique. All procedures were performed under general anesthesia.
  
  
  RESULTS
  All procedures were technically successful. Clinical success was achieved in 94.5% of patients (17/18). Only one patient had recurrence of symptoms 8 months after percutaneous resection and was surgically retreated. There were no complications.
  
  
  CONCLUSIONS
  CT-guided percutaneous drilling resection is a safe, simple and effective minimally invasive technique for the treatment of osteoid osteoma in pediatric patients.
authors.affiliation: Department of Interventional Radiology, Hospital Nacional de Pediatria Prof. Dr. J. P. Garrahan, Pichincha 1850 (1245), Buenos Aires, Argentina. sergio.sierre@usa.net
authors.forename: Sergio
authors.initials: S
authors.lastname: Sierre
authors.forename: Sergio
authors.initials: S
authors.lastname: Innocenti
authors.forename: Jose
authors.initials: J
authors.lastname: Lipsich
authors.forename: Lucas
authors.initials: L
authors.lastname: Lanfranchi
authors.forename: Horacio
authors.initials: H
authors.lastname: Questa
authors.forename: Silvia
authors.initials: S
authors.lastname: Moguillansky
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D009364:Neoplasm Recurrence, Local; D010017:Osteoma, Osteoid / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D010027:Osteotomy / Q000379:methods; D012086:Reoperation; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome