We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Radiofrequency ablation for non-spinal osteoid osteomas in 557 patients.
- Authors
Rimondi E; Mavrogenis AF; Rossi G; Ciminari R; Malaguti C; Tranfaglia C; Vanel D; Ruggieri P; Rimondi, Eugenio; Mavrogenis, Andreas F; Rossi, Giuseppe; Ciminari, Rosanna; Malaguti, Cristina; Tranfaglia, Cristina; Vanel, Daniel; Ruggieri, Pietro
- Abstract
<bold>Objectives: </bold>To present the results of biopsy and computed tomography (CT) guided radiofrequency ablation (RFA) for non-spinal osteoid osteomas, and compare the results before and after procedural modifications.<bold>Methods: </bold>We retrospectively studied 557 patients with non-spinal osteoid osteomas treated with biopsy and CT-guided RFA. In 68 patients we used 3-mm CT at 2-mm intervals, 19 G/5-mm active tip electrodes, and one 4-minute ablation at 90-93°C. In 489 patients we used contiguous 1-mm CT, 20 G/5-15-mm electrodes, ablation maintaining 60°C for 2 min followed by 14-15 min at 90-93°C, and multiple ablations in the same session for large and multiform lesions.<bold>Results: </bold>533/557 patients (96%) remained asymptomatic and 24/557 (4%) had recurrence; repeat RFA was successful in 22/24 patients (92%). Biopsy was non-diagnostic in 82%. With the modifications performed, success improved from 79% to 98%, recurrences reduced from 21% to 2% and complications from 5.9% to 0.2% (p < 0.001). All patients with large and multiform lesions treated with one ablation had recurrence, compared to no patient with similar lesions and multiple ablations in the same session.<bold>Conclusion: </bold>Electrode parameters, duration of ablation, morphology and size of osteoid osteomas are important for RFA. The above modifications are recommended for improved outcome.
- Publication
European Radiology, 2012, Vol 22, Issue 1, p181
- ISSN
0938-7994
- Publication type
journal article
- DOI
10.1007/s00330-011-2240-1