Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo
The mechanic of TKA prosthesis in relation to prosthesis design remains unclear despite of previous extensive research. This study attempts to observe the stress states and contact mechanics of polyethylene (PE) insert of knee prosthesis during common daily activities and their relation with condyla...
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Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM)
2017
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| Online Access: | https://ir.uitm.edu.my/id/eprint/39183/1/39183.pdf https://ir.uitm.edu.my/id/eprint/39183/ |
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| _version_ | 1833066096517709824 |
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| author | Mohd Anuar, Mohd Afzan Todo, Mitsugu |
| author_facet | Mohd Anuar, Mohd Afzan Todo, Mitsugu |
| author_sort | Mohd Anuar, Mohd Afzan |
| building | Tun Abdul Razak Library |
| collection | Institutional Repository |
| content_provider | Universiti Teknologi Mara |
| content_source | UiTM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | The mechanic of TKA prosthesis in relation to prosthesis design remains unclear despite of previous extensive research. This study attempts to observe the stress states and contact mechanics of polyethylene (PE) insert of knee prosthesis during common daily activities and their relation with condylar and post-cam design. Knee joint loadings during walking, stair climbing, chair sitting and deep squatting were applied to Scorpio Superflex and Scorpio Non-Restricted Geometry (NRG) knee implants using 6-degree-of-freedom (DOF) displacement-force driven model. Finite element models were developed in FEMAP using tetrahedron elements while motions of knee joint were modelled in LS-DYNA. Design of Superflex serves relatively good conformity but more rotational resistance that leads to surface distortion. NRG, however, has more relaxed geometry without compromising the needs of appropriate conforming articular surfaces. This research demonstrated that PE tibial insert stress conditions are closely associated with condylar and post-cam geometry. Conforming interfaces serve good wear resistance, however provide surface constraint towards motion, which leads to surface distortion. |
| format | Article |
| id | my.uitm.ir-39183 |
| institution | Universiti Teknologi Mara |
| language | en |
| publishDate | 2017 |
| publisher | Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) |
| record_format | eprints |
| spelling | my.uitm.ir-391832020-12-17T04:25:12Z https://ir.uitm.edu.my/id/eprint/39183/ Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo jmeche Mohd Anuar, Mohd Afzan Todo, Mitsugu Finite element method TJ Mechanical engineering and machinery The mechanic of TKA prosthesis in relation to prosthesis design remains unclear despite of previous extensive research. This study attempts to observe the stress states and contact mechanics of polyethylene (PE) insert of knee prosthesis during common daily activities and their relation with condylar and post-cam design. Knee joint loadings during walking, stair climbing, chair sitting and deep squatting were applied to Scorpio Superflex and Scorpio Non-Restricted Geometry (NRG) knee implants using 6-degree-of-freedom (DOF) displacement-force driven model. Finite element models were developed in FEMAP using tetrahedron elements while motions of knee joint were modelled in LS-DYNA. Design of Superflex serves relatively good conformity but more rotational resistance that leads to surface distortion. NRG, however, has more relaxed geometry without compromising the needs of appropriate conforming articular surfaces. This research demonstrated that PE tibial insert stress conditions are closely associated with condylar and post-cam geometry. Conforming interfaces serve good wear resistance, however provide surface constraint towards motion, which leads to surface distortion. Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2017 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/39183/1/39183.pdf Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo. (2017) Journal of Mechanical Engineering (JMechE) <https://ir.uitm.edu.my/view/publication/Journal_of_Mechanical_Engineering_=28JMechE=29/>, SI 4 (4). pp. 211-228. ISSN 18235514 |
| spellingShingle | Finite element method TJ Mechanical engineering and machinery Mohd Anuar, Mohd Afzan Todo, Mitsugu Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo |
| title | Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo |
| title_full | Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo |
| title_fullStr | Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo |
| title_full_unstemmed | Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo |
| title_short | Mechanics of Posterior Stabilized Total Knee Arthroplasty During Daily Activities in Relation to Prosthesis Condylar and Post-cam Design: A Finite Element Study / Mohd Afzan Mohd Anuar and Mitsugu Todo |
| title_sort | mechanics of posterior stabilized total knee arthroplasty during daily activities in relation to prosthesis condylar and post-cam design: a finite element study / mohd afzan mohd anuar and mitsugu todo |
| topic | Finite element method TJ Mechanical engineering and machinery |
| url | https://ir.uitm.edu.my/id/eprint/39183/1/39183.pdf https://ir.uitm.edu.my/id/eprint/39183/ |
| url_provider | http://ir.uitm.edu.my/ |