Biphasic finite element simulation of the TMJ disc from in vivo kinematic and geometric measurements

被引：62

作者：

Donzelli, PS

Gallo, LM

Spilker, RL

Palla, S

机构：

[1] Rensselaer Polytech Inst, Dept Biomed Engn, Troy, NY 12180 USA

[2] Rensselaer Polytech Inst, Sci Computat Res Ctr, Troy, NY 12180 USA

[3] Univ Zurich, Ctr Dent & Oral Med & Maxillofacial Surg, Clin Masticatory Disorders & Complete Dentures, CH-8028 Zurich, Switzerland

来源：

JOURNAL OF BIOMECHANICS | 2004年 / 37卷 / 11期

关键词：

temporomandibular joint; fibrocartilage; biphasic model; dynamic stereometry; finite element analysis;

D O I：

10.1016/j.jbiomech.2004.01.029

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Understanding the biomechanical nature of the degeneration of the temporomandibular joint requires a coupling between experimental measurements and numerical simulation. In this study, geometry measured from MRI, and motion obtained from a specially designed optoclectronic system are fed into a three-dimensional biphasic finite element analysis to generate the spatial and temporal mechanical response of the disc. This study demonstrates how this coupling can effectively predict the biomechanical response of the temporomandibular joint disc to physiological loading. For small jaw opening movements, asymmetries in the load of the disc are found, with especially higher shear stresses in the lateral portion. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1787 / 1791

页数：5