中国临床解剖学杂志 ›› 2016, Vol. 34 ›› Issue (4): 439-443.doi: 10.13418/j.issn.1001-165x.2016.04.017

• 临床生物力学 • 上一篇    下一篇

椎体截面的数理学原理分析与脊柱病变的探讨

刘小勇1,3, 杨惠林1, 罗宗平2   

  1. 1.苏州大学附属第一医院骨科,  江苏   苏州    215007; 2.苏州大学骨科研究所,  江苏   苏州    215007;
    3.苏州科技城医院骨科,  江苏   苏州    215000
  • 收稿日期:2015-12-02 出版日期:2016-07-25 发布日期:2016-08-03
  • 作者简介:刘小勇(1972-),男,江西瑞金人,副主任医师,博士,主要从事骨科临床工作,脊柱骨折微创研究,Tel:15995886605,E-mail:007lxy@sina.com

The principles of mathematical analysis for vertebral sections and the research of spinal lesions

LIU Xiao-yong 1,3, YANG Hui-lin1, LUO Zong-ping2   

  1. 1. Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215007, China; 2. Orthopaedic Institute of Soochow University, Suzhou 215007, China;  3. Department of Orthopaedice, Suzhou Science and Technology Town Hospital, Suzhou 215000, China
  • Received:2015-12-02 Online:2016-07-25 Published:2016-08-03

摘要:

目的 测量脊柱椎体终板截面的横径与矢径,利用数理学原理分析脊柱椎体—椎间盘受力传递规律,分析人体脊柱椎体—椎间盘的受力规律与临床病理联系。   方法 测量10具完整脊柱标本C2~S1各椎体上下截面的横径(L)、矢径(H),运用几何学相似原理:椎体/椎间盘上下截面面积变化可近似用数学方程表达,S1/S2=(a*b)/(A*B),S=π/4*L*H,分析椎体上下截面的结构规律;根据椎间盘的结构,利用物理学静水液压原理:F1/F2=S1/S2,分析椎间盘压力变化规律;根据数理学原理推测脊柱椎体—椎间盘的结构与力学规律。  结果 脊柱椎体截面的结构从C2下截面到L4下截面面积呈“S”形曲线递增,L4下截面面积最大,L4下截面到S1上截面递减;椎体—椎间盘间截面横径矢径决定其椎体截面面积、压力系数K,K=L*H。  结论 脊柱椎体—椎间盘自身结构决定了脊柱特有的力学传递与分布规律;建立数理学方程来认识脊柱的结构与力学传递规律能更直观的理解与观察脊柱力学特性与临床脊柱病变规律。

关键词: 脊柱, 椎体, 椎间盘, 横径, 矢径, 数理学

Abstract:

Objective To analyze stress transmission rule of spinal vertebral body - intervertebral disc with mathematical and physical principles; to analyze the correlation between stress transmission rule of spinal vertebral body - intervertebral disc and clinical pathology.  Methods  The transverse diameter (L) and sagittal diameter (H) of the upper and lower sections on each vertebral body of C2~S1 in 10 intact spinal specimens were measured. Similarity principle of geometry was used: the area changes of upper and lower sections of vertebral body/intervertebral disc could be expressed in mathematical equations S1/S2=(a*b)/(A*B) and S=π/4*L*H to analyze the structure law of upper and lower sections of vertebral bodies; According to the structure of the intervertebral disc, principle of hydrostatic pressure F1/F2=S1/S2 was used to analyze the law of intervertebral disc pressure change.   Results  With regard to the spinal vertebral body section structure, the area increased in a S-shaped curve from the lower section of C2 to lower section of L4. The section area decreased from the lower section of L4 to the upper section of S1. The transverse diameter and sagittal diameter of the vertebral body - intervertebral disc determined the section area of the vertebral body and pressure coefficient K, K=L*H.    Conclusion   The structure of spinal vertebral body-intervertebral disc itself determines the specific mechanical transmission and distribution characteristics of the spine; Establishment of mathematical equations to recognize the structure and mechanical transmission law of the spine can help more intuitively understand and observe spinal mechanical characteristics and patterns of clinical spinal lesions.

Key words: Spine, Vertebral body, Intervertebral disc, Transverse diameter, Sagittal diameter, Mathematics and physics