藏族与汉族成人腰椎椎弓根CT测量比较  

Comparison of CT measurements of lumbar pedicle between Tibetan and Han adults

作　　者：洪锋泽 彭超[2] HONG Feng-ze;PENG Chao(Tibet University,Lhasa 850000,China;Department of Orthopedics,People's Hospital of Xizang Tibet Autonomous Region,Lhasa 850000,China)

机构地区：[1]西藏大学,西藏拉萨850000 [2]西藏自治区人民医院骨科,西藏拉萨850000

出　　处：《中国矫形外科杂志》2023年第7期595-600,共6页Orthopedic Journal of China

基　　金：西藏大学研究生“高水平人才培养计划”项目资助(编号:2020-GSP-S083)。

摘　　要：[目的]测量西藏藏族成年人腰椎椎弓根形态特点,同时对比藏汉两族及男女之间腰椎椎弓根形态差异,为西藏患者腰椎椎弓根螺钉固定提供可靠的解剖学数据。[方法]随机抽取本院符合纳入标准的测量对象,其中藏族100例,男50例,女50例;汉族100例,男50例,女50例。通过CT检查测量L_(1)~L_(5)椎体的椎弓根宽度、轴线长度、矢状径、横断面角和矢状面角,按民族、性别分组比较。[结果]200例受测量者腰椎椎弓根宽度及横断面角度均由L_(1)到L_(5)逐渐增大(P<0.05),椎弓根矢状径由L_(1)至L_(5)均逐渐减小(P<0.05),腰椎椎弓根的轴线长以L_(3)最大(P<0.05),腰椎椎弓根矢状面角总体呈下降趋势(P<0.05)。藏族与汉族间腰椎椎弓根各径线的数据部分有差异,同种族间男性腰椎椎弓根宽度、轴线长、矢状径均显著大于女性(P<0.05)。[结论]不同种族、不同性别间腰椎椎弓根形态测量存在差异,因此在行腰椎椎弓根内固定术时置钉角度与螺钉型号的选择应考虑种族及性别的差异,同时腰椎椎弓根形态存在个体差异,术前有必要对置钉椎体进行CT等检查。[Objective] To search the morphological characteristics of lumbar pedicle in Tibetan adults by comparison of the morphological differences of lumbar pedicle between Tibetan and Han ethnic groups and between male and female to provide reliable anatomical data for lumbar pedicle screws fixation in Tibetan patients.[Methods] A total of 200 persons,including 100 Tibetan and 100 Han with 50 male and 50 female in each ethnic group were randomly selected based on the inclusion criteria.The pedicle width,axis length,sagittal diameter,cross-sectional angle and sagittal angle from L_(1) to L_(5) vertebrae were measured by CT examination,and compared between ethnic groups and gender groups.[Results] The lumbar pedicle width and cross-sectional angle increased from L_(1) to L_(5) in the 200 subjects(P<0.05),while the sagittal diameter of the pedicle decreased gradually from L_(1) to L_(5)(P<0.05),the axis length of lumbar pedicle was of the maximal value at L_(3) levels(P<0.05),the lumbar pedicle sagittal angle was generally decreased up-down(P<0.05).The data in terms of some lumbar pedicle diameters were significantly different between Tibetan and Han ethnic groups,in addition,the male was significantly greater in terms of the width,axis length and sagittal diameter of lumbar than the female(P<0.05).[Conclusion] There are differences in the measurement of lumbar pedicle morphology among different races and genders.Therefore,ethnic and gender differences should be considered in the selection of screw placement angle and screw type during lumbar pedicle internal fixation.In other words,it may be necessary to perform CT and other examinations on the involved vertebrae before operation.

关 键 词：腰椎 椎弓根形态 CT 椎弓根螺钉 

分 类 号：R687[医药卫生—骨科学]