颈椎板成形术后的脊髓扩大和后移  

Enlargement and posterior displacement of the spinal cord after cervical laminoplasty

作　　者：张家红[1] 王伟[1] 周之德[1] 沈建中[1] 

机构地区：[1]上海第二医科大学附属新华医院骨科,上海200092

出　　处：《临床骨科杂志》1999年第4期259-260,共2页Journal of Clinical Orthopaedics

摘　　要：目的　研究颈椎板成形术后脊髓的形态学改变和疗效的相互关系。方法　对２０ 例颈脊髓病患者在行椎管扩大椎板成形术前后进行颈ＣＴ脊髓成像术，测量脊髓的矢状径、横径和横截面的变化。结果　颈椎板成形术后，Ｃ５ 水平脊髓矢状径增大约０－８ ｍ ｍ ，但横径减小约０－９ ｍ ｍ ，脊髓横截面面积增大７－４％ ，在Ｃ５ 水平脊髓向后移动２－８ ｍｍ 。结论　颈椎管扩大椎板成形术可使脊髓减压，而术后脊髓是否后移可能是决定椎管成形术减压效果的重要因素。Objective To investigate relationship between clinical results and morphological changes in the spinal cord after laminoplasty. Methods CT myelography was performed in 20 patients with cervical myelopathy before and after laminoplasty to enlarge the canal,and the sagittal and transverse diameter and the cross sectional area of the spinal cord mearsured. Results The mean sagittal diameter of the spinal cord at C 5 increased by 0 8 mm, but the mean transverse diameter decreased by 0 9 mm, and the mean cross sectional area of the cord increased by 7 4%. The center of the spinal cord moved backward 2 8 mm on average. Conclusion Enlargement of the spinal cord is sufficient to decompress the spinal cord, and posterior displacement may be important factor in determining the decompressive effect of laminoplasty.

关 键 词：脊髓扩大后移 颈椎板成形术 脊髓造影术 CT 

分 类 号：R687.3[医药卫生—骨科学]