Open AccessA reactive poroelastic model to predict the periprosthetic tissue healing
Author(s) -
Dominique Ambard,
Gaëtan Guérin,
Pascal Swider
Publication year - 2009
Publication title -
european journal of computational mechanics
Language(s) - English
Resource type - Journals
eISSN - 2642-2085
pISSN - 2642-2050
DOI - 10.13052/ejcm.18.131-143
Subject(s) - periprosthetic , poromechanics , osseointegration , implant , biomedical engineering , materials science , finite element method , porous medium , medicine , porosity , surgery , arthroplasty , composite material , structural engineering , engineering
Conditions influencing the implant osteointegration in the early post-operative period include the surgical technique and coupled mechanical and biochemical factors. We hypothesized that coupling deformable porous media mechanics to governing equations of cell migration, might help to predict the periprosthetic tissue healing and in particular the heterogeneous bone formation which is unfavourable to the implant survival. To proceed, a multiphasic model of porous tissue surrounding a loaded implant was coupled to osteoblast migration and immature bone deposit. A finite element resolution was implemented and the application concerned a canine implant. The sensitivity analysis using volume strain as variable showed that compression was rather unfavourable to homogenous distribution of periprosthetic bone healing.