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  • Title: Kinetic changes in the spinal cord occupation rate of dural sac in cervical spondylotic myelopathy.
    Author: Machino M, Ito K, Kato F, Ando K, Kobayashi K, Nakashima H, Kanbara S, Ito S, Inoue T, Koshimizu H, Imagama S.
    Journal: J Orthop; 2021; 24():222-226. PubMed ID: 33767534.
    Abstract:
    OBJECTIVE: The study aimed to establish the spinal cord occupation rate of the dural sac during flexion and extension. METHODS: We measured the cross-sectional area of the dural sac and the spinal cord between C2/C3 and C7/T1 disc levels in 100 patients with cervical spondylotic myelopathy and 1211 asymptomatic subjects. RESULTS: The spinal cord occupation rate of the dural sac in the cross-sectional area was higher on extension than on flexion at the mid-lower cervical spine. CONCLUSIONS: The spinal cord occupation rate of the dural sac in the cross-sectional area was highest at the C4/C5 and C5/C6 levels on extension.
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