Requirements for next generation hip replacements

Employing multi-scale computational modelling, we aim to develop and validate a hip-implant weal model integrated with whole-body simulations of joint loading. Using the software Anybody Modelling System, we are developing a multi-body dynamics model that predicts loads on the hip replacement for the most common activities of daily living, including adverse scenarios, for a broad range of population parameters (e.g. height, weight, gender).  This acquired knowledge on the loads will then be used to develop a finite element model of the articulating system that includes prediction of the lubrication of the joint, classic wear processes as well as delamination of the coating layers. This model will be derived from experimental data gathered in other European universities collaborating in the project.

By the end of this project, our contribution will allow a better understanding of the loading conditions and wear processes that hip replacements regularly undergo. It will eventually allow optimising the design and the surgical parameters for a new concept of total hip replacement that uses state-of-the-art coating materials to extend the life span of such implants.