Biomechanical analysis and design of a dynamic spinal fixator using topology optimization: a finite element analysis.
Surgeons often use spinal fixators to manage spinal instability. Dynesys (DY) is a type of dynamic fixator that is designed to restore spinal stability and to provide flexibility. The aim of this study was to design a new spinal fixator using topology optimization [the topology design (TD) system]....
| Publicado en: | Medical & Biological Engineering & Computing Vol. 52; no. 5; pp. 499 - 509 |
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| Autores principales: | , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
May2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=103819142&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103819142 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: May2014 vid: 52 iid: 5 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 103819142 NLM24737048 2012554722 10.1007/s11517-014-1154-x NLM24737048 103819142 ppf: 499 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Biomechanical analysis and design of a dynamic spinal fixator using topology optimization: a finite element analysis. aug: au: Lin, Hung-Ming Liu, Chien-Lin Pan, Yung-Ning Huang, Chang-Hung Shih, Shih-Liang Wei, Shun-Hwa Chen, Chen-Sheng affil: Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan. sug: subj: Equipment Design Internal Fixators Models, Biological Spinal Fusion Equipment and Supplies Kinematics Finite Element Analysis Human Spinal Diseases Surgery Lumbar Vertebrae Surgery ab: Surgeons often use spinal fixators to manage spinal instability. Dynesys (DY) is a type of dynamic fixator that is designed to restore spinal stability and to provide flexibility. The aim of this study was to design a new spinal fixator using topology optimization [the topology design (TD) system]. Here, we constructed finite element (FE) models of degenerative disc disease, DY, and the TD system. A hybrid-controlled analysis was applied to each of the three FE models. The rod structure of the topology optimization was modelled at a 39 % reduced volume compared with the rigid rod. The TD system was similar to the DY system in terms of stiffness. In contrast, the TD system reduced the cranial adjacent disc stress and facet contact force at the adjacent level. The TD system also reduced pedicle screw stresses in flexion, extension, and lateral bending. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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