View in EDS PDF Full Text

FEM assisted evaluation of PMMA and Ti6Al4V as materials for cranioplasty resulting mechanical behaviour and the neurocranial protection.

Saved in:
Bibliographic Details
Title: FEM assisted evaluation of PMMA and Ti6Al4V as materials for cranioplasty resulting mechanical behaviour and the neurocranial protection.
Authors: Tsouknidas, Alexander1, Maropoulos, Stergios2, Savvakis, Savvas2, Michailidis, Nikolaos3
Source: Bio-Medical Materials & Engineering. 2011, Vol. 21 Issue 3, p139-147. 9p. 2 Color Photographs, 3 Diagrams, 2 Charts, 3 Graphs.
Subjects: Finite element method data processing, CAD/CAM systems, Polymethylmethacrylate, Orthopedic implants, Skull surgery complications, Bone mechanics, Neurocranial restructuring, Medical imaging systems
Abstract: Recent advances in Computer Aided Design and Manufacturing techniques (CAD/CAM) have facilitated the rapid and precise construction of customized implants used for craniofacial reconstruction. Data of the patients' trauma, acquired through Computer Topographies (CT), provide sufficient information with regard to the defect contour profile, thus allowing a thorough preoperative evaluation whilst ensuring excellent implant precision. During the selection, however, of a suitable implant material for the specific trauma, the mechanical aspects of the implant have to be considered. This investigation aims to assess the mechanical strength, the shock resistance and the critical deflection of cranial implants manufactured with two commonly used materials, Polymethylmethacrylate (PMMA) and Ti6Al4V. Even though the strength properties of Ti-alloys are far superior to those of PMMA, there are several aspects that may act in advantage of PMMA, e.g., it is known that discontinuities in the elastic modulus of adjoined parts (bone-implant) lead to bone resorption thus loosening the fixation of the implant over time.The implant design and fixation was the same in both cases allowing a direct comparison of the implant behavior for various loads. Finite Element Methods (FEM) assisted procedures were employed, providing a valuable insight to the neurocranial protection granted by these implants. [ABSTRACT FROM AUTHOR]
Copyright of Bio-Medical Materials & Engineering is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 67088452
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: FEM assisted evaluation of PMMA and Ti6Al4V as materials for cranioplasty resulting mechanical behaviour and the neurocranial protection.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Tsouknidas%2C+Alexander%22">Tsouknidas, Alexander</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Maropoulos%2C+Stergios%22">Maropoulos, Stergios</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Savvakis%2C+Savvas%22">Savvakis, Savvas</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Michailidis%2C+Nikolaos%22">Michailidis, Nikolaos</searchLink><relatesTo>3</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Bio-Medical+Materials+%26+Engineering%22">Bio-Medical Materials & Engineering</searchLink>. 2011, Vol. 21 Issue 3, p139-147. 9p. 2 Color Photographs, 3 Diagrams, 2 Charts, 3 Graphs.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Finite+element+method+data+processing%22">Finite element method data processing</searchLink><br /><searchLink fieldCode="DE" term="%22CAD%2FCAM+systems%22">CAD/CAM systems</searchLink><br /><searchLink fieldCode="DE" term="%22Polymethylmethacrylate%22">Polymethylmethacrylate</searchLink><br /><searchLink fieldCode="DE" term="%22Orthopedic+implants%22">Orthopedic implants</searchLink><br /><searchLink fieldCode="DE" term="%22Skull+surgery+complications%22">Skull surgery complications</searchLink><br /><searchLink fieldCode="DE" term="%22Bone+mechanics%22">Bone mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Neurocranial+restructuring%22">Neurocranial restructuring</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+imaging+systems%22">Medical imaging systems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Recent advances in Computer Aided Design and Manufacturing techniques (CAD/CAM) have facilitated the rapid and precise construction of customized implants used for craniofacial reconstruction. Data of the patients' trauma, acquired through Computer Topographies (CT), provide sufficient information with regard to the defect contour profile, thus allowing a thorough preoperative evaluation whilst ensuring excellent implant precision. During the selection, however, of a suitable implant material for the specific trauma, the mechanical aspects of the implant have to be considered. This investigation aims to assess the mechanical strength, the shock resistance and the critical deflection of cranial implants manufactured with two commonly used materials, Polymethylmethacrylate (PMMA) and Ti6Al4V. Even though the strength properties of Ti-alloys are far superior to those of PMMA, there are several aspects that may act in advantage of PMMA, e.g., it is known that discontinuities in the elastic modulus of adjoined parts (bone-implant) lead to bone resorption thus loosening the fixation of the implant over time.The implant design and fixation was the same in both cases allowing a direct comparison of the implant behavior for various loads. Finite Element Methods (FEM) assisted procedures were employed, providing a valuable insight to the neurocranial protection granted by these implants. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Bio-Medical Materials & Engineering is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=67088452
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3233/bme-2011-0663
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 139
    Subjects:
      – SubjectFull: Finite element method data processing
        Type: general
      – SubjectFull: CAD/CAM systems
        Type: general
      – SubjectFull: Polymethylmethacrylate
        Type: general
      – SubjectFull: Orthopedic implants
        Type: general
      – SubjectFull: Skull surgery complications
        Type: general
      – SubjectFull: Bone mechanics
        Type: general
      – SubjectFull: Neurocranial restructuring
        Type: general
      – SubjectFull: Medical imaging systems
        Type: general
    Titles:
      – TitleFull: FEM assisted evaluation of PMMA and Ti6Al4V as materials for cranioplasty resulting mechanical behaviour and the neurocranial protection.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Tsouknidas, Alexander
      – PersonEntity:
          Name:
            NameFull: Maropoulos, Stergios
      – PersonEntity:
          Name:
            NameFull: Savvakis, Savvas
      – PersonEntity:
          Name:
            NameFull: Michailidis, Nikolaos
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 08
              Text: 2011
              Type: published
              Y: 2011
          Identifiers:
            – Type: issn-print
              Value: 09592989
          Numbering:
            – Type: volume
              Value: 21
            – Type: issue
              Value: 3
          Titles:
            – TitleFull: Bio-Medical Materials & Engineering
              Type: main
ResultId 1