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題名 Biomechanical analysis and design of a dynamic spinal fixator using topology optimization: a finite element analysis
作者 施世亮
Hung-Ming Lin;Chien-Lin Liu;Yung-Ning Pan;Chang-Hung Huang;Shih-Liang Shih (施世亮);Chen-Sheng Chen
貢獻者 神科所
日期 2014-04
上傳時間 19-Nov-2014 10:23:08 (UTC+8)
摘要 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.
關聯 Medical & biological engineering & computing,52(5),499-508
資料類型 article
dc.contributor 神科所en_US
dc.creator (作者) 施世亮zh_TW
dc.creator (作者) Hung-Ming Lin;Chien-Lin Liu;Yung-Ning Pan;Chang-Hung Huang;Shih-Liang Shih (施世亮);Chen-Sheng Chenen_US
dc.date (日期) 2014-04en_US
dc.date.accessioned 19-Nov-2014 10:23:08 (UTC+8)-
dc.date.available 19-Nov-2014 10:23:08 (UTC+8)-
dc.date.issued (上傳時間) 19-Nov-2014 10:23:08 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/71530-
dc.description.abstract (摘要) 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.en_US
dc.format.extent 4120589 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) Medical & biological engineering & computing,52(5),499-508en_US
dc.title (題名) Biomechanical analysis and design of a dynamic spinal fixator using topology optimization: a finite element analysisen_US
dc.type (資料類型) articleen