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pubmed:abstractText |
When the neck is flexed in patients with Chiari I malformation, herniated tonsils descend, impacting the spinal canal, and the clivus-canal angle changes and compresses the ventral spinal cord. Therefore, we speculated that the existence of tonsillar herniation might have some influence on the cervical spine, such as changes in range of motion, sagittal alignment, and spondylosis. The purpose of this radiological study was to clarify quantitatively the relation between tonsillar herniation and the cervical spine regarding range of motion, sagittal alignment, and cervical spondylotic change.
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pubmed:affiliation |
Department of Orthopaedic Surgery, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan.
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