Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems
Aseptic loosening is one of the major causes for revision surgery in hip arthroplasty. This has been attributed to failure in achieving strong primary fixation. Interface micromotion beyond a certain threshold limit inhibits bone ingrowth and favours the formation of fibrous tissue. In this study, a...
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| Format: | Article |
| Language: | English |
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Penerbit UTM Press
2007
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| Online Access: | http://eprints.utm.my/5718/ http://eprints.utm.my/5718/1/MohammedRafiqAbdulkadir2007_IncorporationofInterferenceFitandCyclic.pdf |
| _version_ | 1848891108003676160 |
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| author | Abdul-Kadir, Mohammed Rafiq Hansen, Ulrich N. |
| author_facet | Abdul-Kadir, Mohammed Rafiq Hansen, Ulrich N. |
| author_sort | Abdul-Kadir, Mohammed Rafiq |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Aseptic loosening is one of the major causes for revision surgery in hip arthroplasty. This has been attributed to failure in achieving strong primary fixation. Interface micromotion beyond a certain threshold limit inhibits bone ingrowth and favours the formation of fibrous tissue. In this study, an algorithm was constructed to predict micromotion and therefore instability of femoral stems. Based on common physiological loading, micromotion is calculated throughout the bone-implant interface. Press fit stem insertion was modelled using interference fit and cyclic loading was used to better simulate actual loading configuration. An in-vitro micromotion experiment was carried out on four human cadaveric femurs to validate the micromotion algorithm. A good correlation was obtained between finite element predictions and the in-vitro micromotion experiment. |
| first_indexed | 2025-11-15T20:52:43Z |
| format | Article |
| id | utm-5718 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:52:43Z |
| publishDate | 2007 |
| publisher | Penerbit UTM Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-57182017-11-01T04:17:24Z http://eprints.utm.my/5718/ Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems Abdul-Kadir, Mohammed Rafiq Hansen, Ulrich N. TJ Mechanical engineering and machinery Aseptic loosening is one of the major causes for revision surgery in hip arthroplasty. This has been attributed to failure in achieving strong primary fixation. Interface micromotion beyond a certain threshold limit inhibits bone ingrowth and favours the formation of fibrous tissue. In this study, an algorithm was constructed to predict micromotion and therefore instability of femoral stems. Based on common physiological loading, micromotion is calculated throughout the bone-implant interface. Press fit stem insertion was modelled using interference fit and cyclic loading was used to better simulate actual loading configuration. An in-vitro micromotion experiment was carried out on four human cadaveric femurs to validate the micromotion algorithm. A good correlation was obtained between finite element predictions and the in-vitro micromotion experiment. Penerbit UTM Press 2007-12 Article PeerReviewed application/pdf en http://eprints.utm.my/5718/1/MohammedRafiqAbdulkadir2007_IncorporationofInterferenceFitandCyclic.pdf Abdul-Kadir, Mohammed Rafiq and Hansen, Ulrich N. (2007) Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems. Jurnal Teknologi, 47 (A). pp. 19-34. ISSN 0127-9696 http://dx.doi.org/10.11113/jt.v47.252 DOI:10.11113/jt.v47.252 |
| spellingShingle | TJ Mechanical engineering and machinery Abdul-Kadir, Mohammed Rafiq Hansen, Ulrich N. Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems |
| title | Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems |
| title_full | Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems |
| title_fullStr | Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems |
| title_full_unstemmed | Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems |
| title_short | Incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems |
| title_sort | incorporation of interference fit and cyclic loading in simulation algorithm for better prediction of micromotion of femoral stems |
| topic | TJ Mechanical engineering and machinery |
| url | http://eprints.utm.my/5718/ http://eprints.utm.my/5718/ http://eprints.utm.my/5718/ http://eprints.utm.my/5718/1/MohammedRafiqAbdulkadir2007_IncorporationofInterferenceFitandCyclic.pdf |