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Osteoid osteoma: percutaneous excision using a CT-guided coaxial technique
1Department of Radiology, Children's Hospital of Pittsburgh, PA 15213, USA.
Objective:
We describe a coaxial technique for percutaneous, CT-guided removal of osteoid osteoma in children.
Subjects And Methods:
The study included eight children aged 3 years to 15 years 9 months who had signs and symptoms of osteoid osteoma. The diagnoses were confirmed by CT scans. Seven of nine lesions were removed manually with a coaxial technique and a trephine. Power tools were added to the technique in the other two cases. Removal of the nidus was confirmed by postprocedural CT scans and by histologic examination.
Results:
All CT-guided excisions were technically successful, and only one minor complication occurred. One recurrence at 13 months was successfully treated percutaneously.
Conclusion:
CT-guided coaxial removal of osteoid osteoma is a safe and effective treatment. Increasing experience and the use of power tools in selected cases helps to shorten the procedure.