Mechanism of thoracolumbar burst fractures：a biomechanical study

作     者：戴力扬 Dai Liyang

作者机构：上海第二医科大学附属新华医院骨科上海200092 

出 版 物：《Chinese Medical Journal》 (中华医学杂志（英文版）)

年 卷 期：2002年第115卷第3期

页      面：336-338页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 08[工学] 0836[工学-生物工程] 10[医学] 

基　　金：supported by the National Natural Science Foundation of China(No3880785) 

主　　题：Biomechanics Imaging, Three-Dimensional Lumbar Vertebrae Models, Biological Research Support, Non-U.S. Gov't Spinal Fractures Thoracic Vertebrae 

摘      要：OBJECTIVE: To investigate the mechanism associated with thoracolumbar burst fractures. METHODS: Stress distribution of the spine in the upright, flexion and extension positions was analyzed using a three-dimensional finite element model of the spinal motion segment. RESULTS: Stress concentration was noted at the pedicle and posterosuperior part of the vertebral body near the pedicle. CONCLUSION: Stress concentration of the spine may be implicated in the biomechanical mechanism underlying thoracolumbar burst fractures.