Computed tomography-guided radiofrequency ablation of intra-articular osteoid osteoma: a single centre’s experience

AbstractObjective: To evaluate safety and efficacy of radiofrequency ablation (RFA) in the treatment of painful intra-articular osteoid osteoma.Materials and methods: During the last 3 years, 15 patients underwent computed tomography (CT)-guided biopsy and RFA of symptomatic intra-articular osteoid osteoma. In order to assess and sample the nidus, a coaxial bone biopsy system was used. Biopsy was performed and followed by ablation session with osteoid osteoma protocol in all cases. Procedure time (i.e. drilling including local anaesthesia and ablation), amount of scans, the results of biopsy and pain reduction during follow-up period are reported.Results: Access to the nidus through normal bone, biopsy and electrode insertion was technically feasible in all cases. Median procedure time was 54 min. Histologic verification of osteoid osteoma was performed in all cases. Median amount CT scans, performed to control correct positioning of the drill and precise electrode placement within the nidus was 9. There ...