title: [Image-guided minimal invasive surgical resection of osteoid osteomas of the long bones].
abstract: OBJECTIVE
  In this prospective study, we evaluated the efficiency of image-guided minimal invasive surgical resection of osteoid osteomas of the long bones.
  
  
  METHODS
  Fourteen patients (11 males, 3 females; mean age 13 years; range 4 to 22 years) with osteoid osteoma of the long bones underwent image-guided minimal invasive intralesional extended curettage. Preoperatively, all the patients were evaluated by plain radiographs, computed tomography (CT), bone scintigraphy, and magnetic resonance imaging (MRI). Localization of the nidus was determined by measurements on thin-section (1-1.5 mm) CT scans and MR images and complete excision of the nidus was performed by image-guided minimal invasive technique. All the patients were evaluated by visual analog scale or faces pain scale to determine pain levels before and after surgery. The mean follow-up period was 17 months (range 13 to 31 months).
  
  
  RESULTS
  The mean visual analog scale scores were 7.9+/-1.2 (severe pain) and 0.3+/-0.6 (no pain) before and after surgery, respectively (p<0.05). Bone grafting or internal fixation were not required during operations. No perioperative or postoperative complications or recurrences were encountered. Early mobilization was possible in all the patients. At the final follow-ups, all the patients were asymptomatic and had full functional use of their operated extremities.
  
  
  CONCLUSIONS
  Image-guided minimal invasive surgery is effective in the local control of osteoid osteomas affecting the long bones and causes less morbidity. This technique also provides a good identification of the nidus intraoperatively.
authors.affiliation: Department of Orthopedics and Traumatology (Ortopedi ve Travmatoloji Kliniği), Lütfi Kirdar Kartal Training and Research Hospital, Istanbul, Turkey. oofluoglu@yahoo.com
authors.forename: Onder
authors.initials: O
authors.lastname: Ofluoğlu
authors.forename: Bülent
authors.initials: B
authors.lastname: Erol
authors.forename: Gökçe
authors.initials: G
authors.lastname: Mik
authors.forename: Cemil
authors.initials: C
authors.lastname: Coşkun
authors.forename: Muzaffer
authors.initials: M
authors.lastname: Yildiz
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D005269:Femur; D005360:Fibula; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D019060:Minimally Invasive Surgical Procedures / Q000379:methods*; D010017:Osteoma, Osteoid / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D010147:Pain Measurement; D010149:Postoperative Pain; D011446:Prospective Studies; D015641:Radiography, Interventional / Q000379:methods*; D013977:Tibia; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome