Finite element analysis and design of an interspinous device using topology optimization.
Recently, interspinous stabilization with Coflex-F implant has become an alternative to treat lumbar spinal stenosis (LSS). However, little attention focused on modifying the structure of the device to obtain the better clinic application. The purpose of this study was to design a new interspinous i...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 57; no. 1; pp. 89 - 99 |
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| Autores principales: | , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Springer Nature
Jan2019
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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=133800677&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 133800677 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Jan2019 vid: 57 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 133800677 133800677 NLM29981052 133800677 10.1007/s11517-018-1838-8 NLM29981052 133800677 ppf: 89 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Finite element analysis and design of an interspinous device using topology optimization. aug: au: Guo, Li-Xin Yin, Jia-Yu affil: School of Mechanical Engineering and Automation, Northeastern University, No. 3-11, Wenhua Road, Heping District, 110819, Shenyang, China sug: subj: Finite Element Analysis Prosthesis Design Prostheses and Implants Reproducibility of Results Female Stress, Mechanical Adult Range of Motion Physiology Lumbar Vertebrae Surgery Human Adult: 19-44 years Female ab: Recently, interspinous stabilization with Coflex-F implant has become an alternative to treat lumbar spinal stenosis (LSS). However, little attention focused on modifying the structure of the device to obtain the better clinic application. The purpose of this study was to design a new interspinous implant using topology optimization methods and evaluate its biomechanical performance. The finite element models of healthy lumbar spine and surgical lumbar spine with Coflex-F and Coflex-NEW (the new designed implant) were constructed. Finite element analysis was applied to each of the three models. The interspinous implant structure after topology optimization was remodeled at an 8% reduced volume compared with the Coflex-F device, and they can both provide stability in all motion at the surgical segment. Additionally, the advantage of Coflex-NEW was that it can decrease the von Mises stress of the implant structure in flexion, extension, torsion, and the spinous process in flexion, extension, and bending. The stress in spinous process with Coflex-NEW was well-distributed. Graphical abstract ᅟ. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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