The Evaluation and Observation of "Hidden" Hypertrophy of Cervical Ligamentum Flavum, Cervical Canal, and Related Factors Using Kinetic Magnetic Resonance Imaging
The Evaluation and Observation of "Hidden" Hypertrophy of Cervical Ligamentum Flavum, Cervical Canal, and Related Factors Using Kinetic Magnetic Resonance Imaging
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DOI：
10.1055/s-0035-1557140
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发表时间：
2016-03-01
影响因子：
2.4
通讯作者：
Aghdasi, Bayan
中科院分区：
文献类型：
--
作者：
Zeng, Cheng;Xiong, Jian;Aghdasi, Bayan
研究设计回顾性队列研究。目的应用动态磁共振成像技术（MRI）测量颈椎体位变化过程中黄韧带直径的变化，并探讨从伸位到屈位黄韧带、椎间盘膨出和椎管直径变化的相关性。方法189例患者分别在中立位、伸展位和屈曲位行动态MRI检查。从C2-C3到C7-T1测量颈黄韧带直径、椎间盘膨出、颈椎管直径、椎间盘退变程度和Cobb角。结果共纳入189例患者的1134个颈椎节段。黄韧带由屈向伸平均增加0.260.85 mm， 62.70%的节段黄韧带由屈向伸平均增加。189例患者的所有节段，从屈曲到伸展，颈椎管直径在椎间盘水平平均减小0.56 +/- 1.21mm。所有颈椎管从屈曲到伸展狭窄1mm的节段，与椎管狭窄的患者相比，C3-C4至C5-C6处的黄韧带直径明显增加
Study DesignRetrospective cohort study.ObjectiveThe objective was to measure the change of flavum ligament diameter during positional changes of the cervical spine using kinetic magnetic resonance imaging (MRI) and to examine the correlational diameter changes of the flavum ligament, disk bulging, and the spinal canal from extension to flexion positions.MethodsOne hundred eight-nine patients underwent kinetic MRI in neutral, extension, and flexion positions. The diameters of cervical ligamentum flavum, disk bulging, and cervical spinal canal and the disk degeneration grade and Cobb angles were measured from C2-C3 to C7-T1.ResultsIn all, 1,134 cervical spinal segments from 189 patients were included. There was a 0.260.85-mm average increase in the diameter of the ligamentum flavum from flexion to extension, and 62.70% of the segments had increased ligamentum flavum diameter from flexion to extension. For all segments of the 189 patients, the cervical spinal canal diameters had an average decrease at the disk level of 0.56 +/- 1.21mm from flexion to extension. For all segments with cervical spinal canal narrowing 1mm from flexion to extension view, the ligamentum flavum diameters at C3-C4 to C5-C6 had significant increases compared with patients with spinal canal narrowing