YILMAZ, TEMEL FATİH2021-05-182021-05-182021-04-01Yılmaz TF. Effectiveness of Radiofrequency Ablation Therapy in Osteoid Osteoma: Our 5 Years Experience. Bezmialem Science 2021;9(2):148-52.http://hdl.handle.net/20.500.12645/28899Objective: To evaluate the results of treatment with computed tomography (CT) guided percutaneous radiofrequency ablation (RFA) for osteoid osteomas (OO) and to evaluate imaging findings. Methods: Sixty-three patients (18 female, 45 male) with OO included. Patients were diagnosed by clinic and radiologic findings. Mean age was 18.2 (4-51). Ablation was performed under sedoanalgesia and local anestesia in CT room. Eleven-fifteen gauge coaxial needle was introduced to nidus and 17 gauge RF probe was placed to nidus trough coaxial system. Ablation duration was 6 minutes. Results: Mean nidus size was measured as 8.3 mm (2-16 mm). As a result of statistical analysis, as the size of the nidus increased, the chance of detecting nidus increased on both plain radiography and magnetic resonance imaging (p<0.001). In 63 patients who underwent RFA, only 3 patients were operated for relapse. One patient received RFA for the second time because of recurrence. Our primary success rate in the treatment of osteoid osteoma was 93.6% (59/63) and overall success rate was 95.4%. Conclusion: RFA is a minimally invasive, safe and effective treatment option and has many advantages in the treatment of osteoid osteoma. RFA should be the method of choice for the treatment of osteoid osteoma.Radiofrequency ablationosteoid osteomaMRGnidusArticleWOS:00064007270000610.14235/bas.galenos.2020.4067422287