Invited Speaker
Dr. Gusztáv Fekete
Senior Researcher, Department of Material Science and Technology,Széchenyi István University, Hungary
Speech Title: Numerical Investigation of Knee Prosthesis Wear as A Function of Prosthesis Size
Abstract: Wear is a key factor that significantly limits the survival of total knee arthroplasties (TKAs). While it is known that this phenomenon is influenced by the applied load and the kinematic conditions between the prosthesis parts, it is unknown how the geometry of the TKA react on wear. This article has investigated, by means of multibody models, how different TKA sizes and TKA-related geometric parameters affect wear during gait motion. It has been demonstrated that wear rate increases, closely linearly, as a function of TKAs size, while the influence of TKA-related geometric parameters on wear propagation can be described by either linear or quadratic functions. These results, together with the newly introduced dimensionless parameters, demonstrate that the wear rate of TKAs can be reduced by choosing the right dimensions.
Biography: Dr. Gusztáv Fekete is a mechanical engineer, who received his master degree at the Szent István University (currently Hungarian University of Agriculture and Life Sciences) in Hungary and obtained his PhD at the Ghent University in Belgium. He is internationally recognized for his research and expertise in the field of biomechanics with regard to the lower limbs. Currently, he works as a Senior Research Fellow at the Department of Material Science and Technology, Széchenyi István University and as a Visiting professor at the Ningbo University. Since 2023, he is listed among the top 2% of the most-cited scientists by the Stanford University.