Management of Osteoid Osteoma Using Radiofrequency Ablation

Abstract

Background: Osteoid osteomas (OO) are the third most common benign bone tumors affecting mostly children and adolescents with more tendency toward males. There are different treatment options consisting of medical therapy . Of note percutaneous thermal ablation (PTA) procedures that refer to radio frequency ablation (RFA) and interstitial laser photocoagulation (ILP) have also been recently applied with high success rates. Objectives: We aimed to assess the safety and outcomes of RFL and ILP in patients with OO as well as compare the efficacy of these two procedures. Patients and Methods: Medical records of 60 OO patients were retrospectively reviewed. Patients were divided into two groups, of which 40 underwent RFA procedures and 20 went through ILP. All patients were followed up clinically either through telephone interview or outpatient clinic visit and imaging was conducted in case signs and symptoms recurred. Results: In patients who underwent RFA, pain was relieved within 1 - 7 days in 35, and 1 - 3 months in five patients. Primary and secondary clinical effectiveness were 90.00% and 92.50%, respectively. In ILP, the technical success rate was 100% and the initial clinical success rate was 85.00%. Conclusion: Similar to previous published studies, this study showed high success rates for both RFA and ILA. Total pain relief occurred in 96.6% of the patients.