Interface micromotion failure simulation of cementless hip prosthesis
The most commonly reported failure modes of cementless hip stems are loosening and thigh pain; both are attributed to the relative motion at the bone-implant interface due to failure to achieve sufficient primary fixation. Accurate predictions of hip stems’ stability are therefore crucial to the p...
| Main Authors: | , , , |
|---|---|
| Format: | Monograph |
| Language: | English |
| Published: |
Faculty of Mechanical Engineering
2007
|
| Subjects: | |
| Online Access: | http://eprints.utm.my/5854/1/78057.pdf |
| _version_ | 1825909802746773504 |
|---|---|
| author | Abdul Kadir, Mohammed Rafiq Kamsah, Nazri Tamin, Mohd. Nasir Lee, Faisal Abidin |
| author_facet | Abdul Kadir, Mohammed Rafiq Kamsah, Nazri Tamin, Mohd. Nasir Lee, Faisal Abidin |
| author_sort | Abdul Kadir, Mohammed Rafiq |
| collection | ePrints |
| description | The most commonly reported failure modes of cementless hip stems are loosening and thigh pain; both are attributed to the relative motion at the bone-implant interface due to failure to achieve sufficient primary fixation. Accurate predictions of hip stems’ stability are therefore crucial to the pre-clinical analyses of hip arthroplasty. This study uses finite element technique to analyse the effect of muscle forces on the predicted micromotion and therefore stability of cementless femoral components. An in-house experimentally validated micromotion algorithm was used in analyses simulating two of the most common physiological activities – walking and stair-climbing. The results showed that models where muscle loads were included had ten times larger micromotion than those modelled without muscle loads. Ignoring muscle forces in any pre-clinical evaluation of femoral stems are therefore not advisable as it will overestimate the stability of the stem. |
| first_indexed | 2024-03-05T18:07:35Z |
| format | Monograph |
| id | utm.eprints-5854 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T18:07:35Z |
| publishDate | 2007 |
| publisher | Faculty of Mechanical Engineering |
| record_format | dspace |
| spelling | utm.eprints-58542017-08-10T04:53:59Z http://eprints.utm.my/5854/ Interface micromotion failure simulation of cementless hip prosthesis Abdul Kadir, Mohammed Rafiq Kamsah, Nazri Tamin, Mohd. Nasir Lee, Faisal Abidin T Technology (General) The most commonly reported failure modes of cementless hip stems are loosening and thigh pain; both are attributed to the relative motion at the bone-implant interface due to failure to achieve sufficient primary fixation. Accurate predictions of hip stems’ stability are therefore crucial to the pre-clinical analyses of hip arthroplasty. This study uses finite element technique to analyse the effect of muscle forces on the predicted micromotion and therefore stability of cementless femoral components. An in-house experimentally validated micromotion algorithm was used in analyses simulating two of the most common physiological activities – walking and stair-climbing. The results showed that models where muscle loads were included had ten times larger micromotion than those modelled without muscle loads. Ignoring muscle forces in any pre-clinical evaluation of femoral stems are therefore not advisable as it will overestimate the stability of the stem. Faculty of Mechanical Engineering 2007 Monograph NonPeerReviewed application/pdf en http://eprints.utm.my/5854/1/78057.pdf Abdul Kadir, Mohammed Rafiq and Kamsah, Nazri and Tamin, Mohd. Nasir and Lee, Faisal Abidin (2007) Interface micromotion failure simulation of cementless hip prosthesis. Project Report. Faculty of Mechanical Engineering, Skudai, Johor. (Unpublished) https://link.springer.com/chapter/10.1007/978-3-540-69139-6_109 |
| spellingShingle | T Technology (General) Abdul Kadir, Mohammed Rafiq Kamsah, Nazri Tamin, Mohd. Nasir Lee, Faisal Abidin Interface micromotion failure simulation of cementless hip prosthesis |
| title | Interface micromotion failure simulation of cementless hip prosthesis |
| title_full | Interface micromotion failure simulation of cementless hip prosthesis |
| title_fullStr | Interface micromotion failure simulation of cementless hip prosthesis |
| title_full_unstemmed | Interface micromotion failure simulation of cementless hip prosthesis |
| title_short | Interface micromotion failure simulation of cementless hip prosthesis |
| title_sort | interface micromotion failure simulation of cementless hip prosthesis |
| topic | T Technology (General) |
| url | http://eprints.utm.my/5854/1/78057.pdf |
| work_keys_str_mv | AT abdulkadirmohammedrafiq interfacemicromotionfailuresimulationofcementlesshipprosthesis AT kamsahnazri interfacemicromotionfailuresimulationofcementlesshipprosthesis AT taminmohdnasir interfacemicromotionfailuresimulationofcementlesshipprosthesis AT leefaisalabidin interfacemicromotionfailuresimulationofcementlesshipprosthesis |