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Titolo:
Stress analysis of the disc adjacent to interbody fusion in lumbar spine
Autore:
Chen, CS; Cheng, CK; Liu, CL; Lo, WH;
Indirizzi:
Natl Yang Ming Univ, Orthopaed Biomech Lab, Inst Biomed Engn, Taipei 112, Taiwan Natl Yang Ming Univ Taipei Taiwan 112 st Biomed Engn, Taipei 112, Taiwan Vet Gen Hosp, Dept Orthopaed Surg, Taipei, Taiwan Vet Gen Hosp Taipei Taiwan en Hosp, Dept Orthopaed Surg, Taipei, Taiwan
Titolo Testata:
MEDICAL ENGINEERING & PHYSICS
fascicolo: 7, volume: 23, anno: 2001,
pagine: 483 - 491
SICI:
1350-4533(200109)23:7<483:SAOTDA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
FINITE-ELEMENT; MOTION; DEGENERATION; MECHANICS; MOMENTS;
Keywords:
disc degeneration; finite element model; anterior interbody fusion;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Cheng, CK Natl Yang Ming Univ, Orthopaed Biomech Lab, Inst Biomed Engn, 155 Sec 2,LiNung St, Taipei 112, Taiwan Natl Yang Ming Univ 155 Sec 2,Li NungSt Taipei Taiwan 112 iwan
Citazione:
C.S. Chen et al., "Stress analysis of the disc adjacent to interbody fusion in lumbar spine", MED ENG PHY, 23(7), 2001, pp. 483-491

Abstract

After anterior interbody fusion in the lumbar spine, the accelerated degeneration of the disc adjacent to the fusion levels was clinically observed. To understand the stress distribution of the adjacent disc, this study created a finite element model of the lumbar spine from L1-L5 vertebral body. The fusion model modified from the intact model was used to simulate the anterior interbody fusion. Various loading conditions, which included flexion,extension, lateral bending, and torsion, were applied to the finite element model to study the corresponding stress distribution. From the finite element model calculation, at a lower fusion site or more fusion levels, the stress of the disc adjacent to interbody fusion increased more than upper fusion site or single fusion level under flexion, torsion and lateral bending. Larger stress increase was estimated at the upper disc adjacent to interbody fusion than the lower disc adjacent to interbody fusion. In stress distribution, the upper disc adjacent to interbody fusion had a little alteration under torsion. (C) 2001 IPEM. Published by Elsevier Science Ltd. All rights reserved.

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Documento generato il 22/01/20 alle ore 06:23:30