| In vivo intersegmental motion of the cervical spine using an inverse kinematics procedure. | |
| | |
MedLine Citation:
|
PMID: 20334962 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: The main functions of the cervical spine are the stabilization and the orientation of the head. Pathologies are complex and difficult to diagnose. The first sign of the dysfunction is an abnormal intervertebral motion. It is the purpose of this feasibility study to determine the intersegmental motions and loading conditions of the cervical spine in vivo with standard clinical investigation methods. METHODS: We propose a new approach which merges full flexion-extension X-ray images, and continuous motion of the whole cervical spine obtained with a tracking motion system. These data were used as input for a subject-specific rigid body model of the cervical spine computed with the software MSC.Adams. This model simulates the cervical spine extension/flexion, the intervertebral motions are deduced using an inverse kinematics procedure. FINDINGS: Subject-specific rigid body models were computed from data of two subjects. The intersegmental motion and loading conditions were calculated. We found that the loading amplitudes depended on the intervertebral level, and that subject specific patterns were highlighted. We noticed an unsymmetrical behavior in flexion and extension. Furthermore intervertebral rotations were correlated with the global motion of the cervical spine. INTERPRETATION: A subject-specific rigid body model merged data from classical flexion-extension radiographs and noninvasive external motion capture. Our approach is based on inverse kinematics allowing the estimation of the intervertebral motion and mechanical behavior of the cervical spine in vivo, which gives valuable information concerning biomechanics of the cervical spine in vivo for cervical spine clinical investigation. |
| | |
Authors:
|
F Marin; N Hoang; P Aufaure; M-C Ho Ba Tho |
Publication Detail:
|
Type: Journal Article Date: 2010-03-23 |
Journal Detail:
|
Title: Clinical biomechanics (Bristol, Avon) Volume: 25 ISSN: 1879-1271 ISO Abbreviation: Clin Biomech (Bristol, Avon) Publication Date: 2010 Jun |
Date Detail:
|
Created Date: 2010-05-03 Completed Date: 2010-08-13 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8611877 Medline TA: Clin Biomech (Bristol, Avon) Country: England |
Other Details:
|
Languages: eng Pagination: 389-96 Citation Subset: IM |
Copyright Information:
|
Copyright (c) 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
|
Biomécanique et Bioingénierie UMR CNRS 6600, Université de Technologie de Compiègne, Compiègne, France. frederic.marin@utc.fr |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Biomechanics Cervical Vertebrae / physiology*, radiography Feasibility Studies Humans Models, Anatomic Range of Motion, Articular / physiology* Software |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Serum antioxidants and inflammation predict red cell distribution width in older women: the Women's ...
Next Document: Inhibition, recovery and oxime-induced reactivation of muscle esterases following chlorpyrifos expos...