2017
DOI: 10.1097/md.0000000000009156
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Cervical myelopathy caused by invaginated laminae of the axis associated with occipitalizaion of the atlas

Abstract: Rationale:In previous studies, few cases of cervical myelopathy caused by invaginated anomalous laminae of the axis have been reported, and none of them was combined with occipitalization of the atlas.Patient concerns:A 28-year-old male was brought to our hospital with motor and sensory impairments of the extremities after a car accident.Diagnoses:MRI showed the spinal cord was markedly compressed at the C2/3 level. Reconstructed CT scans revealed an invaginated laminae of axis into the spinal canal as well as… Show more

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Cited by 3 publications
(8 citation statements)
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“…Koyama et al first reported a separated lamina of the axis invaginated into the canal in 1986 [ 1 ]. Subsequently, 14 cases of myelopathy caused by invaginated lamina of the axis were reported ( Table 1 ) [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. While most anomalies of the axis are in combination with other anomalies (e.g., spina bifida and ossification of the posterior longitudinal ligament), cases of anomalies involving the axis alone are very rare [ 2 , 7 , 10 ].…”
Section: Discussionmentioning
confidence: 99%
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“…Koyama et al first reported a separated lamina of the axis invaginated into the canal in 1986 [ 1 ]. Subsequently, 14 cases of myelopathy caused by invaginated lamina of the axis were reported ( Table 1 ) [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. While most anomalies of the axis are in combination with other anomalies (e.g., spina bifida and ossification of the posterior longitudinal ligament), cases of anomalies involving the axis alone are very rare [ 2 , 7 , 10 ].…”
Section: Discussionmentioning
confidence: 99%
“…Similarly, Jiang et al also reported a case of a 16-year-old boy with invaginated laminae of the axis in a spina bifida occulta and hypoplasia of the arch of the atlas [ 6 ]. Xu also reported a case of a 28-year-old man with invaginated laminae of the axis into the spinal canal and occipitalization of the atlas [ 11 ]. Although these cases had similar radiographic characteristics to ours, the patients were younger.…”
Section: Discussionmentioning
confidence: 99%
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“…Only a few reports of a C2 anomaly in isolation have been published 2,3) . Some C2 anomalies have been reported combined with ossification of the posterior longitudinal ligament, atlas anomaly, or C7 anomaly [4][5][6][7][8] . However, simultaneous C2 and C3 anomalous separated laminae have not been reported.…”
Section: Computed Tomography (Ct)mentioning
confidence: 99%