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. 2019 Jun 30;16(2):186–194. doi: 10.14245/ns.1938138.069

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Copyright © 2019 by the Korean Spinal Neurosurgery Society

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2. — Images of a 19-year-old male patient. (A) T1-weighted magnetic resonance imaging (MRI) showing severe basilar invagination. (B) T2-weighted MRI. (C) Computed tomography (CT) scan showing no atlantodental interval abnormality. (D) CT scan showing type 2 atlantoaxial facetal instability. The facet of atlas is dislocated posterior to the facet of axis. (E) Postoperative CT scan. (F) Postoperative CT scan showing the implant.