颈椎滑脱（cervical spondylolisthesis）是指椎体相对于下方椎体的滑移。通过测量椎体后缘滑移的距离，重度脊椎滑脱定义为水平平移>3.5mm，意味着不稳。
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颈椎滑脱是颈椎不稳的结局，颈椎不稳因椎间盘和关节突关节退变或关节活动度多大如Ehlers-Danlos syndrome。
常规CT和MRI观察的都是静态的颈椎滑脱，需要前屈和后伸片来判断不稳（后缘滑移超3.5mm）。
滑脱的此节，如果有关节突关节积液、项韧带骨化、牵张骨赘等等往往也提示不稳因素。
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中立位MRI显示椎管脊髓并无压迫，此时存在颈椎滑脱、甚至不稳时，在过伸和过屈时往往是有压迫。此类患者应该通过过伸或过屈位MRI捕获压迫图像。
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影像学颈椎滑脱者有2/3是存在动态压迫，46%存在不稳。
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1.Lee Y, Heard JC, Lambrechts MJ, et al. Significance of Facet Fluid Index in Anterior Cervical Degenerative Spondylolisthesis. Asian Spine Journal.
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3.Park MS, Moon S-H, Oh JK, et al. Natural History of Cervical Degenerative Spondylolisthesis. Spine (Phila Pa 1976) 2019;44:E7–12.
4.Murata K, Endo K, Suzuki H, et al. Spinal sagittal alignment and trapezoidal deformity in patients with degenerative cervical spondylolisthesis. Sci Rep 2019;9:4992.
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6.Park MS, Moon S-H, Lee H-M, et al. The natural history of degenerative spondylolisthesis of the cervical spine with 2- to 7-year follow-up. Spine (Phila Pa 1976) 2013;38:E205-210.
7.Kawasaki M, Tani T, Ushida T, et al. Anterolisthesis and retrolisthesis of the cervical spine in cervical spondylotic myelopathy in the elderly. J Orthop Sci 2007;12:207–13.
8.White AA, Johnson RM, Panjabi MM, et al. Biomechanical analysis of clinical stability in the cervical spine. Clin Orthop Relat Res 1975;85–96.
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