• Kei Ando, Shiro Imagama, Kazuyoshi Kobayashi, Yoshihiro Nishida, and Naoki Ishiguro.
• Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai Showa-ward, Nagoya, Aichi, 466-8550, Japan.
• Eur Spine J. 2017 May 1; 26 (Suppl 1): 111-116.

ObjectiveWe present such a case of aggressive osteoblastoma of cervical spine. We describe its complicated clinical progression, hoping to shed light on the surgical strategy of this complex tumor.MethodsWe present such a case of aggressive osteoblastoma involving the C6-7 vertebrae. A 25-year-old man was diagnosed as aggressive osteoblastoma of the cervical spine. The lesion encroached upon the radicular foramina and was located adjacent to the canal of the vertebral artery. Preoperative embolization was performed to reduce intraoperative bleeding and to prevent intraoperative injury of the vertebral artery.ResultsA pathologic examination showed osteoblasts suggestive of osteoblastoma. At 2-year follow-up, bony union was achieved, and there was no evidence of recurrence on a CT scan.ConclusionEn bloc total resection for highly vascular osteoblastoma is ideal, but this case shows that piecemeal total resection following preoperative embolization is a surgical option for highly expansive osteoblastoma.

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