Radiofrequency ablation:
Done under CT guidance
11 G radiofrequency-compatible coaxial needle
2 mm coaxial drill system
1.0 cm active tip 17 G non-cooled radiofrequency needle
At 90 °C for 6 min.
Absolute alcohol injection:
Usually after RFA
0.5–1.0 ml absolute alcohol into the nidus using 20 G needle
Prognosis:
Technical success rate 100%
Pain relief in 96%
Complications:
Rare
Local cellulitis
Paresthesia
Reference:
Akhlaghpoor S et al. Percutaneous osteoid osteoma treatment with combination of radiofrequency and alcohol ablation. Clin Rad (2007). 62: 268-273
