Author/Authors :
Anguiano-Sanchez, Jesica Escuela de Ingenierıay Ciencias - Tecnologico de Monterrey - Avenida Eugenio Garza Sada - Monterrey, Mexico , Martinez-Romero, Oscar Escuela de Ingenierıay Ciencias - Tecnologico de Monterrey - Avenida Eugenio Garza Sada - Monterrey, Mexico , Siller, Hector R Escuela de Ingenierıay Ciencias - Tecnologico de Monterrey - Avenida Eugenio Garza Sada - Monterrey, Mexico , Diaz-Elizondo, Jose A Escuela de Medicina - Tecnologico de Monterrey - Avenida Eugenio Garza Sada - Monterrey, Mexico , Flores-Villalba, Eduardo Escuela de Ingenierıay Ciencias - Tecnologico de Monterrey - Avenida Eugenio Garza Sada - Monterrey, Mexico , Rodriguez, Ciro A Escuela de Ingenierıay Ciencias - Tecnologico de Monterrey - Avenida Eugenio Garza Sada - Monterrey, Mexico
Abstract :
Stress shielding is a well-known failure factor in hip implants. This work proposes a design concept for hip implants, using a
combination of metallic stem with a polymer coating (polyether ether ketone (PEEK)). The proposed design concept is simulated
using titanium alloy stems and PEEK coatings with thicknesses varying from 100 to 400 𝜇m. The Finite Element analysis of the
cancellous bone surrounding the implant shows promising results. The effective von Mises stress increases between 81 and 92% for
the complete volume of cancellous bone. When focusing on the proximal zone of the implant, the increased stress transmission to
the cancellous bone reaches between 47 and 60%. This increment in load transferred to the bone can influence mineral bone loss
due to stress shielding, minimizing such effect, and thus prolonging implant lifespan.
Keywords :
PEEK , Hip , Element , analysis
