Treatment of osteoid osteoma by computed tomography guided excision in the pediatric patient.

An osteoid osteoma is a benign lesion that can occur in any bone. Controversy exists regarding treatment of this condition. This study demonstrates that the nidus of an osteoid osteoma can be disrupted and removed by use of the CORB biopsy system guided by computed tomography (CT) scan. Of nine patients followed for an average of 42.5 months (range 18-76 months), seven have had complete resolution of their pain after this procedure. The technique failed in two patients, who each required two separate en bloc excisions with bone grafting to resolve each lesion. CT-directed CORB appears to be useful in localization and removal of the nidus of an osteoid osteoma.