中国临床解剖学杂志 ›› 2022, Vol. 40 ›› Issue (5): 505-510.doi: 10.13418/j.issn.1001-165x.2022.5.01

• 应用解剖 •    下一篇

下颈椎前路椎弓根皮质骨螺钉的解剖学研究

彭鹏1,    黄刚1,    朱美松2,    李鉴轶3,4*   

  1. 1.南方医科大学中西医结合医院骨伤科,  广州   510315;    2.南昌大学第一附属医院骨科,  南昌   330006;   
    3.南方医科大学第三附属医院医学实验中心,  广州 510630;    4.南方医科大学人体解剖学教研室,
    广东省医学生物力学重点实验室,  广州   510515
  • 收稿日期:2020-04-10 出版日期:2022-09-25 发布日期:2022-10-10
  • 通讯作者: 李鉴轶,博士,教授,E-mail:wuxili74@126.com
  • 作者简介:彭鹏(1992-),男,江西吉安人,硕士研究生,医师,研究方向:骨科,E-mail:1285120479@qq.com
  • 基金资助:
    国家自然科学基金(31771330); 国家重点研发计划(2017YFC0110602); 广东省中医药局科研项目(20212152)

Anatomical study of anterior pedicle cortical bone screw in lower cervical spine

Peng Peng1, Huang Gang1, Zhu Meisong2, Li Jianyi 3,4*   

  1. 1. Department of Orthopedics, TCM-Integrated Hospital of Southern Medical University, Guangzhou 510315, China; 2. Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China;  3. Medical Experimental Center, the Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China; 4. Department of Human Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, Southern Medical University, Guangzhou 510515, China
  • Received:2020-04-10 Online:2022-09-25 Published:2022-10-10

摘要: 目的    测量正常成人下颈椎椎弓根的解剖学参数,探讨下颈椎前路椎弓根皮质骨螺钉内固定技术的可行性。  方法    随机选取80例正常成人颈椎CT影像资料,将扫描数据导入MIMICS 19.0软件。测量C3~C7椎体的椎弓根宽度(OPW)、椎弓根高度(OPH)、内侧皮质骨厚度(MCT)以及颈前路椎弓根皮质骨螺钉置钉参数,进行统计学分析。  结果    各节段左右两侧 OPH 和 MCT 参数的差异有统计学意义(P<0.05)。测量男性的 OPH 和 OPW 参数均大于女性,差异有统计学意义(P<0.05)。C3~C4进钉点位于椎体正中矢状面椎弓根的对侧1.0~3.0 mm,距椎体上终板平面1.0~3.5 mm;C5进钉点位于椎体正中矢状面椎弓根同侧或对侧1.0~2.0 mm,距椎体上终板平面3.0~4.0 mm;C6~C7进钉点位于椎体正中矢状面椎弓根的同侧2.0~4.5 mm,距椎体上终板平面4.5~7.0 mm。C3~C7的皮质骨螺钉总体内倾角平均值分别是:39.13°、41.00°、40.91°、37.28°、31.84°,总体矢状角是:90.85°、97.23°、108.97°、111.60°、104.83°。螺钉的直径为3.5 mm,长度选择30 mm,32 mm较为适宜。   结论    下颈椎前路椎弓根皮质骨螺钉内固定技术在理论上具有可行性,并总结出置钉规律,为其下一步的临床应用提供了理论依据。

关键词: 皮质骨螺钉,  ,  , 下颈椎,  ,  , 解剖学,  ,  , 椎弓根

Abstract: Objective    To  investigate the feasibility of cortical bone trajectory for cervical anterior transpedicular screw fixation (ATPS) by measuring the anatomical characteristics of lower cervical pedicle. Methods    Eighty sets adult healthy cervical specimens were randomly selected, and the scanned date were imported to the MIMICS 19.0 software. The following parameters in C3~C7 vertebrae: outer pedicle width (OPW) of vertebral body, outer pedicle height (OPH) of vertebral body, medial cortical shell thickness (MCT) of the pedicle, and the cortical bone screw parameters of ATPS were measured and analyzed statistically. Results    There were significant differences in OPH and MCT between two sides of each segment (P<0.05). The OPH and OPW of each segment in males were greater than those of in females, with statistical differences (P<0.05). The entry point for C3 and C4 was 1.0-3.0 mm contralateral to the pedicle in the midsagittal plane of vertebra body, 1.0-3.5 mm from the upper end plate of vertebra body. The C5 entry point was 1.0-2.0 mm ipsilateral or contralateral to the pedicle in the midsagittal plane of vertebra body, 3.0-4.0 mm from the upper end plate of vertebra body. The entry point for C6 and C7 was 2.0-4.5 mm ipsilateral to the pedicle in the midsagittal plane of vertebra body, 4.5-7.0 mm from the upper end plate of vertebra body. At the cortical bone trajectory, the mean values of overall leaning angles from C3 to C7 were 39.13°, 41.00°, 40.91°, 37.28°,and 31.84° respectively, the mean values of overall sagittal angles from C3 to C7 were 90.85°, 97.23°, 108.97°, 111.60°, and 104.83° respectively. For ATPS, the diameters of cortical bone screw was 3.5 mm and the inserted length was 30 mm or 32 mm.    Conclusions   The cortical bone trajectory is a theoretically feasible option for ATPS, and the parameters inserting screw are established, which provides theoretical basis for its further clinical application.

Key words: Cortical bone screw,  ,  , Lower cervical spine,  ,  , Anatomy,  ,  , Pedicle

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