Contact Pressure, sliding distance and wear rate analysis at trunnion of hip implant for daily Activities: A finite element approach
Issued Date
2025-04-01
Resource Type
ISSN
02085216
Scopus ID
2-s2.0-85218623652
Journal Title
Biocybernetics and Biomedical Engineering
Volume
45
Issue
2
Start Page
137
End Page
153
Rights Holder(s)
SCOPUS
Bibliographic Citation
Biocybernetics and Biomedical Engineering Vol.45 No.2 (2025) , 137-153
Suggested Citation
Soliman M.M., Islam M.T., Kirawanich P., Chowdhury M.E.H., Alam T., Alrashdi A.M., Misran N., Soliman M.S. Contact Pressure, sliding distance and wear rate analysis at trunnion of hip implant for daily Activities: A finite element approach. Biocybernetics and Biomedical Engineering Vol.45 No.2 (2025) , 137-153. 153. doi:10.1016/j.bbe.2025.02.001 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/105517
Title
Contact Pressure, sliding distance and wear rate analysis at trunnion of hip implant for daily Activities: A finite element approach
Corresponding Author(s)
Other Contributor(s)
Abstract
This research analyses contact pressure, sliding distance, and wear rate at the trunnion interface of hip implants during various activities to understand post-hip replacement outcomes. The study uses a numerical model and ISO-7206–6:2013 constraints with an AML hip implant. Greater Fx, Fy, and Fz forces broaden contact pressure distribution. The highest pressure occurs on the proximal superolateral surface, with the lowest on the anterior and posterior surfaces. The HIGH100 (individuals weighing above 100 kg) weight category demonstrates 2 times higher maximum and average contact pressure compared to AVG75 (individuals weighing 75 kg) for sit-down and knee bend activities. Force components and the duration of a full gait cycle influence sliding distance. Stance activities show the highest sliding distance due to rapid changes in force load during the gait cycle. For sit-down and knee bend activities, the total sliding distance is 2.5 times higher in the HIGH100 weight category compared to AVG75. Sliding distance primarily occurs at the proximal superolateral-inferomedial-anterior-posterior contact surface, decreasing distally. Based on contact pressure, sliding distance, and wear volume rate, jogging and stance activities pose the highest risk for hip replacement patients, while cycling is the safest. The HIGH100 weight group exhibits 5- and 4-times greater wear volume rates than AVG75 in sit-down and knee bend activities, respectively. The research findings align with wear degradation observed in retrieved hip implants, validating the study. These insights can assist patients in making informed decisions about performing activities after surgery while enabling physicians to provide accurate guidelines.