中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (27): 4332-4336.doi: 10.3969/j.issn.2095-4344.0348

• 脊柱植入物 spinal implant • 上一篇    下一篇

枢椎交叉椎板螺钉轨道的模拟设计

孙月荣1,王天瑞2,潘荣芳3,王 岩1,任翀旻1,张国庆1,陈伯华1,岳 斌1   

  1. 青岛大学附属医院,1骨科,3营养科,山东省青岛市 266003;2河北医科大学,河北省石家庄市  050000
  • 出版日期:2018-09-28 发布日期:2018-09-28
  • 通讯作者: 岳斌,副主任医师,硕士生导师,青岛大学附属医院骨科,青岛市 266003
  • 作者简介:孙月荣,女,1975年生,山东省东营市人,汉族,主要从事脊柱退行性疾病的基础和临床研究。
  • 基金资助:

    山东省优秀中青年科学家科研奖励基金(BS2011YY006)

Virtual design of trajectory of cervical crossing laminar screw

Sun Yue-rong1, Wang Tian-rui2, Pan Rong-fang3, Wang Yan1, Ren Chong-min1, Zhang Guo-qing1, Chen Bo-hua1, Yue Bin1   

  1. 1Department of Orthopedics, 3Department of Nutrition, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China; 2Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
  • Online:2018-09-28 Published:2018-09-28
  • Contact: Yue Bin, Associate chief physician, Master’s supervisor, Department of Orthopedics, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
  • About author:Sun Yue-rong, Department of Orthopedics, the Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
  • Supported by:

    the Research Award Fund for Outstanding Young Scientists in Shandong Province, No. BS2011YY006

摘要:

文章快速阅读:

 
 

 

文题释义:
Mimics虚拟置钉测量:利用Mimics软件对C2的CT扫描图像进行三维重建,在重建模型上做C2交叉椎板螺钉的虚拟设计,模拟空间角度、长度等与颈椎实物相一致,可对不同入钉位置和轨道进行多次、反复设计,测量结果具有科学性和可信性,且取材方便,适于临床研究和应用。
C2交叉椎板螺钉固定技术:由Wright在2004年首次报道。C2的棘突和椎板较厚,在棘突与椎板交界处入钉,双侧螺钉交叉植入对侧椎板,在临床治疗寰枢椎不稳相关疾病或损伤中,可以达到较好的固定和生物力学效果,减少椎动脉损伤的发生。
 
摘要
背景:C2交叉椎板螺钉入钉点、入钉轨道会影响置钉效果和安全性。
目的:利用Mimics软件对C2椎体进行三维重建、虚拟置钉和测量,探讨国内C2交叉椎板螺钉应用的形态结构基础以及适宜的入钉点和入钉轨道。
方法:2012年2月至2016年7月青岛大学医学院附属医院行颈椎CT扫描并符合纳入排除标准的影像400例,将CT扫描的影像资料导入Mimics 15.0进行三维重建,建立C2的椎体的三维图像后,进行虚拟交叉椎板螺钉置钉(直径3.5 mm),测量椎体形态和入钉轨道。
结果与结论:①C2椎板和棘突高度和厚度存在明显的性别差异(P < 0.05),均可支持交叉螺钉固定;②C2椎体距椎管后缘向棘突方向5.0-6.0 mm处作为虚拟入钉点,入钉成功率分别为男性92.1%、女性86.1%、最大安全角度范围,与其他入钉点相比差异有显著性意义(P < 0.05),同时,可有较大的入钉长度;③综上所述,国内成年人有C2交叉椎板螺钉固定适宜的解剖学基础,C2椎体距椎管后缘向棘突方向5.0-6.0 mm处作为虚拟入钉点,可获得良好的入钉轨道。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程
ORCID: 0000-0003-0184-8700(岳斌)

关键词: C2交叉椎板螺钉, 轨道分析, 计算机三维模拟手术设计, 安全角度范围, 椎板, 棘突, 形态测量, 最大入钉长度, 骨科植入物

Abstract:

BACKGROUND: Entry point and trajectory of C2 crossing laminar screw can affect its clinical effect and safety.

OBJECTIVE: To explore the structural basis of application of C2 crossing laminar screw in China and the suitable entry point and trajectory using Mimics software through three-dimensional reconstruction, virtual design and measurement.
METHODS: Totally 400 cases of cervical CT data were collected between February 2012 and July 2016 at the Affiliated Hospital of Qingdao University. Three-dimensional reconstruction and virtual entry point and trajectory of C2 crossing laminar screw (3.5 mm in diameter) were performed using Mimics 15.0. C2 morphology and screw trajectory were measured.
RESULTS AND CONCLUSION: (1) There were significant differences in the height and thickness of the C2 laminae and spinous process between sexes (P < 0.05), which could support the application of C2 crossing laminar screw. (2) Zone 5.0–6.0 mm posterior to the spinal canal was recommended as a feasible entry point due to the maximum success rate (92.1% in men, 86.1% in women) and maximum safe angle range. (3) These results suggest that domestic adults have appropriate anatomical basis for C2 crossing laminar screw, and zone 5.0–6.0 mm posterior to the spinal canal was recommended as a feasible entry point.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Bone Nails, Image Processing, Computer-Assisted, Computer Simulation, Tissue Engineering

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