Chang, H Retro-dental reactive lesions related to development of myelopathy in patients with atlantoaxial instability secondary to Os odontoideum. [electronic resource] - Spine Nov 2000 - 2777-83 p. digital Publication Type: Journal Article ISSN: 0362-2436 Standard No.: 10.1097/00007632-200011010-00010 doi Subjects--Topical Terms: AdultAgedAtlanto-Axial Joint--pathologyChildChild, PreschoolFemaleHumansJoint Instability--diagnostic imagingMagnetic Resonance ImagingMaleMiddle AgedOdontoid Process--pathologyRadiographyRetrospective StudiesSpinal Cord Compression--diagnostic imagingSpinal Diseases--diagnostic imaging