Osteoid osteoma: The results of the treatment with en bloc resection

Abstract

Osteoid osteoma is a benign bone tumor characterized by the formation of a nidus of vascular osteoid tissue surrounded by a margin of dense sclerotic reactive bone. The diagnosis of the osteoid osteoma is made on the basis of findings in the clinical history and results at plain radiography, computerized tomography (CT) and bone scintigraphy. The treatment of osteoid osteoma remains contraversial. Most of the surgeons prefer en bloc resection for treatment. Recently, CT guided percutaneous treatment of osteoid osteoma has been reported. In seventeen patients diagnosed on the basis of clinical and radiological findings, treatment was done by en bloc resection. The lesion was observed in every case, by intraoperative radiographs of the surgical field and of the resected specimen. Follow-up ranged from 6 to 72 months (mean 23.8 months). All patients were syptom free, immediately after the operation and with no evidence of recurrence at the latest follow-ups.