OSTEOID OSTEOMA - PERCUTANEOUS EXCISION USING A CT-GUIDED COAXIAL TECHNIQUE

OBJECTIVE. We describe a coaxial technique for percutaneous, CT-guided removal of osteoid osteoma in children. SUBJECTS AND METHODS. The stu dy included eight children aged 3 years to 15 years 9 months who had s igns and symptoms of osteoid osteoma, The diagnoses were confirmed by CT scans. Seven of nine lesions were removed manually with a coaxial t echnique and a trephine. Power tools were added to the technique in th e other two cases. Removal of the nidus was confirmed by postprocedura l CT scans and by histologic examination. RESULTS, All CT-guided excis ions were technically successful, and only one minor complication occu rred. One recurrence at 13 months was successfully treated percutaneou sly. CONCLUSION. CT-guided coaxial removal of osteoid osteoma is a saf e and effective treatment. Increasing experience and the use of power tools in selected cases helps to shorten the procedure.