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	Validation of the Neutral Zone of a C0-C1-C2 FE Complex
	Zhang, Hao ; Bai, Jing
	2010-05-10 ; 2010-05-10
会议名称	WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006, VOL 14, PTS 1-6 ; World Congress on Medical Physics and Biomedical Engineering ; Seoul, SOUTH KOREA ; Web of Science
关键词	Cervical spine Finite element model Ligament Neutral zone VHP UPPER CERVICAL-SPINE FINITE-ELEMENT MODEL LIGAMENTS ROTATION ALAR BIOMECHANICS TRANSECTIONS Engineering, Biomedical Physics, Applied Imaging Science & Photographic Technology
中文摘要	It has been theorized that the neutral zone (NZ) may be a more sensitive parameter of spinal instability than the range of motion (ROM). An anatomic detailed, nonlinear finite element (FE) model of the occipito-atlanto-axial (C0-C1-C2) complex based on Visible Human Male dataset was developed in this study, which can improve the previous upper cervical spine FE models by its increased geometric modeling accuracy and more precise material assignment. According to the analysis of the motions of each vertebral level under physiological static loadings to simulate the movements of upper cervical spine under axial rotation, flexion, extension, and lateral bending, the ROMs and NZs agreed well with published experimental data. The moment-rotation relationship predicted by this model was apparently nonlinear, and the largest rotation was predicted in horizontal plane, followed by median plane and coronal plane. The complex exhibited large ROMs and high proportions of NZ to ROM. According to our knowledge, there are no published results of FE models of upper cervical spine by far that have already undergone validations for both ROM and NZ under physiologic loads and are in good agreement with experimental data. The findings of the validation of this newly-developed model also coincide with the experimental studies. Therefore, it can be concluded that the current FE model validated for NZ is useful in the investigation of abnormal NZ in disease and trauma.
会议录出版者	SPRINGER-VERLAG BERLIN ; BERLIN ; HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/20218]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, Hao,Bai, Jing. Validation of the Neutral Zone of a C0-C1-C2 FE Complex[C]. 见:WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006, VOL 14, PTS 1-6, World Congress on Medical Physics and Biomedical Engineering, Seoul, SOUTH KOREA, Web of Science.

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