- Tytuł:
- Analysis of wear of polyethylene hip joint cup related to its positioning in patient’s body
- Autorzy:
-
Rońda, J.
Wojnarowski, P. - Powiązania:
- https://bibliotekanauki.pl/articles/307555.pdf
- Data publikacji:
- 2013
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
hip joint endoprosthesis
wear
coefficient of wear
finite element method
proteza stawu biodrowego
metoda elementów skończonych
zużycie - Opis:
- Polyethylene parts of endoprosthesis are the weakest parts of each medical implant. They can be worn out within several years. During this period, a patient can enjoy good physical efficiency until the wear of polyethylene part limits his/her mobility. Then the reoperation is necessary and positioning of all parts of endoprosthesis has an effect on future patient’s mobility and durability of implant. Elements of endoprosthesis during exploitation are heavily loaded both by normal and tangential forces and moments. In this paper, the dependence of wear of polyethylene cup on its positioning in pelvis is the major problem. Wear of the cup is determined by two measures: the depth and volume of a material rubbed off from the contact surface. The sensitivity of the depth of rubbing off is evaluated relative to two angles of anteversion and abduction, and radii of the cup. Numerical results are obtained by using Abaqus FE system with data related to patient’s activity identified on the basis of medical reports.
- Źródło:
-
Acta of Bioengineering and Biomechanics; 2013, 15, 1; 77-86
1509-409X
2450-6303 - Pojawia się w:
- Acta of Bioengineering and Biomechanics
- Dostawca treści:
- Biblioteka Nauki