下颈椎新型双螺纹椎弓根螺钉设计的解剖学测量  

Anatomical measurement of the new double-threaded pedicle screw in the lower cervical spine

作　　者：刘子豪 刘家明[1,2,3] 颜金祥 吴嘉宝 黄山虎 张志宏[1,2,3] 刘志礼 Liu Zihao;Liu Jiaming;Yan Jinxiang;Wu Jiabao;Huang Shanhu;Zhang Zhihong;Liu Zhili(Center of Medical Innovation,the First Affiliated Hospital of Nanchang University,Nanchang 330006,China;Jiangxi Provincial Key Laboratory of Spine and Spinal Cord,Nanchang 330006,China;Department of Orthopedics,the First Affilated Hospital of Nanchang University,Nanchang 330006,China)

机构地区：[1]南昌大学第一附属医院医学创新中心,南昌330006 [2]江西省脊柱脊髓重点实验室,南昌330006 [3]南昌大学第一附属医院骨科,南昌330006

出　　处：《中国临床解剖学杂志》2024年第2期121-125,共5页Chinese Journal of Clinical Anatomy

基　　金：中央引导地方科技发展资金(20222ZDH04095);江西省重点研发计划项目(20223BBG71S02)。

摘　　要：目的通过测量正常人群颈椎解剖学参数,为设计新型双螺纹椎弓根螺钉提供理论依据。方法纳入100名健康人群,完善颈椎CT扫描,在CT片上分别测量C_(3~7)的双侧椎弓根螺钉进钉路径长度(包括椎体内长度、椎弓根长度、椎板长度,作为椎弓根螺钉长度设计参考)、进钉外展角和椎弓根峡部的宽度和高度(作为椎弓根螺钉直径设计参考)。计算各测量结果的均值及四分位数。结果纳入成年健康志愿者100人的基本信息,包括身高、年龄,体重,合并疾病,其中男54例,女46例,平均年龄35.95岁。从C_(3~7),各参数左右两侧对比,差异无统计学意义(P>0.05),男女间对比,差异无统计学意义(P>0.05)下颈椎椎弓根螺钉进钉路径椎体平均长度(15.85±1.20)~(19.40±1.50)mm;椎弓根平均长度(5.42±1.06)~(6.03±0.84)mm;椎板平均长度(9.52±1.15)~(10.33±1.58)mm。进钉外展角平均值范围(39.82±2.53)°~(42.56±2.50)°;椎弓根峡部宽度平均值(5.84±0.87)~(7.10±1.05)mm;椎弓根峡部高度平均值(6.71±1.10)~(8.26±1.22)mm。结论通过对正常人群颈椎C_(3)~C_(7)椎弓根螺钉进钉相关解剖参数的测量,为设计新型双螺纹颈椎椎弓根螺钉提供了理论依据。Objective To provide theoretical basis for the design of new double threaded pedicle screws,by measuring the anatomical parameters of cervical vertebrae in normal people.Methods A total of100 healthy individuals were collected and the cervical spine CT scan were completed.The length of bilateral pedicle screw insertion path (including intra-vertebral length,pedicle length,and vertebral plate length,as reference for pedicle screw length design),insertion abduction angle,and width and height of pedicle isthmus(as reference for pedicle screw diameter design) of C_(3~7)on CT scan.The mean value and quartile of each measurement result were calculated.Results Basic information of 100 adult healthy volunteers,including height,age,weight,and comorbidities,including 54 males and 46 females,with an average age of 35.95 years were recorded.From the CT scan of C_(3~7),there was no statistical difference between the left and right sides of each parameter (P>0.05).There was no statistical difference in male and female (P>0.05).The average length of the vertebral body in the lower cervical pedicle screw insertion path was (15.85±1.20)~(19.40±1.50) mm.The average length of the pedicle was (5.42±1.06)~(6.03±0.84) mm.The average length of the vertebral lamina was (9.52±1.15)~(10.33±1.58) mm.The average range of nail insertion and abduction angle was(39.82±2.53)°~(42.56±2.50)°.The average width of the pedicle isthmus was (5.84±0.87)~(7.10±1.05) mm.The average height of the pedicle isthmus was (6.71±1.10)~(8.26±1.22) mm.Conclusions The measurement of the anatomical parameters related to C_(3)~C_(7)pedicle screw fixation in normal people provides theoretical basis for the design of a new type of double-threaded pedicle screw.

关 键 词：下颈椎 解剖学测量 双螺纹椎弓根螺钉 

分 类 号：R323.1[医药卫生—人体解剖和组织胚胎学]