Abstract
Individualized approach and quality assurance in endoprosthetics remains a challenge. Computer-aided simulation of the mechanical loading of bones and bony integration of the implant as well as the preoperative prognosis of the longevity of the implant has high clinical and socioeconomic impact. The finite element method provides a precise tool for the analysis of the stress distribution in the bone with and without stem under any given loading conditions. Thus, the determination of the loading conditions, which correspond to the real loading of the bone, is utmost important for the prediction of the osseointegration. The presented investigation is devoted to the biomechanical investigations of the osseointegration of a titan stem for the hip-joint replacement using the physiological loading determined for the human femur based on the bending-minimization principle. Using the physiological stress levels for different bone types determined for the intact bone in two cases of human locomotion, the osseointegration area of the stem is calculated based on the comparison of the stress distribution in bone before and after virtual implantation as well as on the analysis of the relative micro-motion on the bone/implant interface. The results of the FE simulation correlate well with the measurements of the osseointegration areas on several explanted stems available for the present investigation as well as with some clinical data. The present work provides a foundation for the simulation and preoperative prognosis of the long-term stability of the total joint replacement and, furthermore, allows an individualized approach to the analysis of endoprostheses.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 International Federation for Medical and Biological Engineering
About this paper
Cite this paper
Sverdlova, N. (2010). Preoperative Simulation of the Hip-Stem Osseointegration Based on the Physiological Loading Conditions. In: Lim, C.T., Goh, J.C.H. (eds) 6th World Congress of Biomechanics (WCB 2010). August 1-6, 2010 Singapore. IFMBE Proceedings, vol 31. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14515-5_159
Download citation
DOI: https://doi.org/10.1007/978-3-642-14515-5_159
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-14514-8
Online ISBN: 978-3-642-14515-5
eBook Packages: EngineeringEngineering (R0)