Combined effect of cup abduction and anteversion angles on long-term wear evolution of PCD-on-PCD hip bearing couple
| Autor: | Mohammad Uddin, K. Gowthaman, Subramaniam Shankar |
|---|---|
| Přispěvatelé: | Shankar, S, Gowthaman, K, Uddin, Ms |
| Rok vydání: | 2017 |
| Předmět: |
Orthodontics
wear medicine.medical_specialty Bearing (mechanical) Materials science finite element method Biomedical Engineering Acetabulum Term (time) law.invention Surgery Femoral head Gait (human) medicine.anatomical_structure Volumetric wear law abduction angle medicine hip joint implants anteversion angle Fe model Contact pressure contact pressure |
| Zdroj: | International Journal of Biomedical Engineering and Technology. 24:169 |
| ISSN: | 1752-6426 1752-6418 |
| DOI: | 10.1504/ijbet.2017.10005688 |
| Popis: | This paper presents a three-dimensional (3D) finite element (FE) modelling for the estimation of wear evolution on the acetabulum cup against the femoral head for the combinations of different abduction angle (35°, 45° and 55°) and anteversion angle (0°, 10°, 20°, 30° and 40°) for PCD-on-PCD hip bearing components. By implementing the actual physiological hip gait loading conditions and the rotational movement of a normal walking cycle in the FE model, the contact pressure and the sliding distance were calculated to predict the wear. The cup surface was updated in a suitable interval of gait cycles for the estimation of wear. Wear was simulated for 20 years implant's life in a human body. Simulation results showed that higher abduction angle and lower anteversion angle result in the least linear and volumetric wear as compared to other conditions considered. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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