Influence of patient position and implant material on the stress distribution in an artificial intervertebral disc of the lumbar vertebrae
Materiały konferencyjne
MNiSW
15
WOS
| Status: | |
| Autorzy: | Karpiński Robert, Szala Mirosław, Mańko Monika, Jaworski Łukasz |
| Dyscypliny: | |
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| Rok wydania: | 2017 |
| Wersja dokumentu: | Elektroniczna |
| Arkusze wydawnicze: | 0,5 |
| Język: | angielski |
| Wolumen/Tom: | 15 |
| Numer artykułu: | 7006 |
| Strony: | 1 - 5 |
| Web of Science® Times Cited: | 9 |
| Bazy: | Web of Science |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | TAK |
| Nazwa konferencji: | 2nd International Conference of Computational Methods in Engineering Science |
| Skrócona nazwa konferencji: | CMES’17 |
| URL serii konferencji: | LINK |
| Termin konferencji: | 23 listopada 2017 do 25 listopada 2017 |
| Miasto konferencji: | Lublin |
| Państwo konferencji: | POLSKA |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Otwarte czasopismo |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 15 grudnia 2017 |
| Abstrakty: | angielski |
| The aim of this paper was to determine the effect of using cobalt and titanium-based alloys as implant materials for the lumbar vertebrae with an artificial intervertebral disc on the stress distribution. The lumbar vertebrae were chosen for the study because they carry considerably higher loads, especially while standing or sitting. Finite element method (FEM) simulations were conducted for three standard loads reflecting three patient’s positions:recumbent, standing and sitting. The FEM analysis was performed using the SolidWorks Simulation module. Artificial units containing a pair of vertebrae with a prosthesis between them were designed by the Solid Edge software, based on micro-computed tomography CT scans of the patients spine. The implant model was designed with its shape based on the geometry of surrounding vertebrae, consisting of an upper pad, a bottom pad and an insert (intervertebral disc). Two implant material configurations were studied. One involved the use of titanium alloy for the upper and bottom pads, while in the other, these pads were made of cobalt alloy. In both cases, a polyethylene insert was used. The FEM results demonstrate that both material configurations meet the requirements for prosthesis design. In both material configurations, the maximum stresses in each prosthesis element are almost twice higher in a sitting posture than in a recumbent position. |
