To describe and illustrate technically challenging osteoid osteoma percutaneous radiofrequency ablations,
that may benefit from special technical recommendations.
Osteoid osteoma (OO) is a benign bone tumor (10% of benign bone tumors).
It’s composed of a central nidus (generally less tan 15 mm in diameter) and is surrounded by reactive bone (Fig.1).
It’s more prevalent in young adult males . The most common symptom is bone pain that characteristically exacerbates at night and is usually relieved after salicylates or non-steroidal antiinflammatory drugs administration (NSAIDs).
include growth disturbance (in...
Findings and procedure details
In all the RFAs we performed,
the diagnosis was established by means of typical clinical presentation and imaging findings.
All patients have been studied with plain radiographs and CT.
Some of them also had an isotope bone scan and/or MRI.
Biopsy was only performed in cases with a doubtful diagnosis.
Before undergoing RFA,
candidates were informed of alternative treatments and a written informed consent was obtained. Procedure We performed the RFAs using similar technical steps.
CT-guided RFA has been proven to be a safe and effective treatment for OO that should be considered the procedure of choice for most of cases.
We report our experience in groups of lesions that benefit from special technical considerations.
All lesions were successfully treated without major complications or long-term recurrences.
The risk of local recurrence is greater in the first year after RFA.
If residual symptomps are present,
a second application of RFA is safe and often effective.
31 (1993) 261–278.  P.T.
Imaging of osteoid osteoma with dynamic gadolinium-enhanced MR imaging,
Radiology 227 (3) (2003) 691–700.  J.S.
Medical management compared with operative treatment for osteoid-osteoma,
Bone Joint Surg.
74 (2) (1992) 179–185.  N.J.