TITLE:
Numerical Simulation of Short- and Long-Term Stability of the Hip Stem: A Review Paper on Remodeling Formulations
AUTHORS:
Emmanuel Thoulon, John Tichy, Xavier Boulnat, Benyebka Bou-Saïd
KEYWORDS:
Osteointegration, Finite Element, Bone, THA, Stress-Shielding
JOURNAL NAME:
Journal of Biomedical Science and Engineering,
Vol.18 No.5,
May
30,
2025
ABSTRACT: Total Hip Arthroplasty (THA) is one of the only available treatments for numerous hip pathologies. Hip protheses do not last for a lifetime. As the age of first implantation increases and the patient pool increases, extending the lifespan of the prothesis is becoming of major societal and economic importance. The main cause of failure, after infection, is aseptic loosening, referring to the resorption of the bone near the implant. To tackle this issue, a precise understanding and simulation of the bone response is needed. Numerous remodeling and healing models exist, and each illustrates different biological phenomena. Creating a model accounting for both processes could help better understand the bone reaction and better predict its reaction to implantation. This article proposes to present a state-of-the art of both the remodeling and healing law, with their respective specificity. The aim is to help select models the most suited to each specific study and to start the discussion concerning models for linking healing and remodeling.