A Discussion on Plating Factors that Affect Stress Shielding Using Finite Element Analysis
Fixation plates and screws are commonly used to promote stability and stiffness to fractures through the compression of bone fragments. However, the difference between the rigidity of an implant and the bone causes stress shielding, and can lead to excessive resorption in the vicinity of implants, t...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2010-03-01
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| Series: | Journal of Biomechanical Science and Engineering |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jbse/5/2/5_2_129/_pdf/-char/en |
| _version_ | 1818531795305496576 |
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| author | Kristina HAASE Gholamreza ROUHI |
| author_facet | Kristina HAASE Gholamreza ROUHI |
| author_sort | Kristina HAASE |
| collection | DOAJ |
| description | Fixation plates and screws are commonly used to promote stability and stiffness to fractures through the compression of bone fragments. However, the difference between the rigidity of an implant and the bone causes stress shielding, and can lead to excessive resorption in the vicinity of implants, thereby causing subsequent implant loosening and failure of fixation. In this study, finite element analysis (FEA) software is employed to generate a simplified three-dimensional model of a transverse femoral fracture affixed with a plate. The first model discussed in this paper is a validation study, proving the qualitative accuracy of using FEA, while the second model is one of increased fidelity and is used in a parametric study to delve into the effects of plate and screw parameters on the level of resultant stress shielding in bone underlying the plate. The models discussed reveal insight into the nature of applied fixation plates. Direct compression plating, although inherently stable, will cause stress shielding in bone and can result in bone loss, screw avulsion, and fixation failure. However, as seen in the parametric study, which is in agreement with previous works, a decrease in implant flexural rigidity, through a decrease in plate thickness and angle, will decrease the level of stress shielding present in a bone-implant system. As well, the importance of screw placement, implant materials, and the future use of FEA as a prospective tool is discussed. |
| first_indexed | 2024-12-11T17:37:07Z |
| format | Article |
| id | doaj.art-e0265d64b3694190849b80a9e32ffc26 |
| institution | Directory Open Access Journal |
| issn | 1880-9863 |
| language | English |
| last_indexed | 2024-12-11T17:37:07Z |
| publishDate | 2010-03-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Biomechanical Science and Engineering |
| spelling | doaj.art-e0265d64b3694190849b80a9e32ffc262022-12-22T00:56:38ZengThe Japan Society of Mechanical EngineersJournal of Biomechanical Science and Engineering1880-98632010-03-015212914110.1299/jbse.5.129jbseA Discussion on Plating Factors that Affect Stress Shielding Using Finite Element AnalysisKristina HAASE0Gholamreza ROUHI1Department of Mechanical Engineering, University of OttawaDepartment of Mechanical Engineering, University of OttawaFixation plates and screws are commonly used to promote stability and stiffness to fractures through the compression of bone fragments. However, the difference between the rigidity of an implant and the bone causes stress shielding, and can lead to excessive resorption in the vicinity of implants, thereby causing subsequent implant loosening and failure of fixation. In this study, finite element analysis (FEA) software is employed to generate a simplified three-dimensional model of a transverse femoral fracture affixed with a plate. The first model discussed in this paper is a validation study, proving the qualitative accuracy of using FEA, while the second model is one of increased fidelity and is used in a parametric study to delve into the effects of plate and screw parameters on the level of resultant stress shielding in bone underlying the plate. The models discussed reveal insight into the nature of applied fixation plates. Direct compression plating, although inherently stable, will cause stress shielding in bone and can result in bone loss, screw avulsion, and fixation failure. However, as seen in the parametric study, which is in agreement with previous works, a decrease in implant flexural rigidity, through a decrease in plate thickness and angle, will decrease the level of stress shielding present in a bone-implant system. As well, the importance of screw placement, implant materials, and the future use of FEA as a prospective tool is discussed.https://www.jstage.jst.go.jp/article/jbse/5/2/5_2_129/_pdf/-char/enfinite element analysisbone fractureremodelingfixationstress shielding |
| spellingShingle | Kristina HAASE Gholamreza ROUHI A Discussion on Plating Factors that Affect Stress Shielding Using Finite Element Analysis Journal of Biomechanical Science and Engineering finite element analysis bone fracture remodeling fixation stress shielding |
| title | A Discussion on Plating Factors that Affect Stress Shielding Using Finite Element Analysis |
| title_full | A Discussion on Plating Factors that Affect Stress Shielding Using Finite Element Analysis |
| title_fullStr | A Discussion on Plating Factors that Affect Stress Shielding Using Finite Element Analysis |
| title_full_unstemmed | A Discussion on Plating Factors that Affect Stress Shielding Using Finite Element Analysis |
| title_short | A Discussion on Plating Factors that Affect Stress Shielding Using Finite Element Analysis |
| title_sort | discussion on plating factors that affect stress shielding using finite element analysis |
| topic | finite element analysis bone fracture remodeling fixation stress shielding |
| url | https://www.jstage.jst.go.jp/article/jbse/5/2/5_2_129/_pdf/-char/en |
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