Bilateral C-1 lateral mass reconstruction following radical resection of a giant osteoblastoma of the atlas: case report

J Neurosurg Spine. 2017 Mar;26(3):307-312. doi: 10.3171/2016.8.SPINE16319. Epub 2016 Nov 11.


Osteoblastoma is a rare, benign, osteoid-producing, and slow-growing primary bone tumor, typically arising in long bones or in the spine, with a slight male predominance. This report describes the surgical treatment of a giant C-1 (atlantal) osteoblastoma diagnosed in a young male patient with neurofibromatosis Type 1. The authors describe the clinical presentation, the surgical procedure for complete excision and stabilization, and results as of the 1-year follow-up. They detail a bilateral occipitoaxial spinal interarticular stabilization technique that they used after complete tumor excision. To the best of their knowledge, this is the first case of bilateral C-1 lateral mass reconstruction by this technique to be reported in the literature.

Keywords: C-1 lateral mass; CVJ = craniovertebral junction; NF1 = neurofibromatosis Type 1; Oc = occiput; VA = vertebral artery; bOASIS = bilateral occipitoaxial spinal interarticular stabilization; bilateral occipitoaxial spinal interarticular stabilization; neurofibromatosis Type 1; oncology; osteoblastoma.

Publication types

  • Case Reports

MeSH terms

  • Bone Neoplasms / diagnosis
  • Bone Neoplasms / pathology
  • Bone Neoplasms / surgery*
  • Cervical Atlas / surgery*
  • Cervical Vertebrae / surgery*
  • Child
  • Humans
  • Male
  • Osteoblastoma / diagnosis
  • Osteoblastoma / surgery*
  • Plastic Surgery Procedures / methods
  • Treatment Outcome