Open AccessContact pressure analysis of acetabular cup surface with dimple addition on total hip arthroplasty using finite element method
Author(s) -
Muhammad Imam Ammarullah,
Amir Putra Md Saad,
Ardiyansyah Syahrom,
Hasan Basri
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1034/1/012001
Subject(s) - dimple , total hip arthroplasty , materials science , contact area , implant , bearing surface , finite element method , joint (building) , joint arthroplasty , biomedical engineering , orthodontics , arthroplasty , composite material , structural engineering , surgery , medicine , engineering , lubrication
This research aims to analyze the contact pressure on acetabular cup surface with dimple addition and without dimple addition. The main contribution in this research is to explore the influence of dimple addition to contact pressure that affects implant lifetime. The simulation is carried out by giving fully 3D physiological loading of the hip joint under normal walking conditions. Contact pressure analysis conducted on dry contact condition and meshing with the two-pole method performed to provide a comprehensive contact pressure result. The results show that the total hip arthroplasty model with dimple addition can reduce contact pressure for all phases in one full cycle with average decreased by 15.53% which indicates that adding dimple to the contact surface in the total hip arthroplasty bearing can extend the life of implant use.