A computational tool for the probabilistic finite element analysis of an uncemented total hip replacement considering variability in bone-implant version angle.
In the present study, a probabilistic finite element tool was implemented to assess an uncemented total hip replacement including variability in bone-implant version angle. The Monte Carlo method was used with two different performance indicators: the bone maximum nodal von-Mises elastic strain and the bone volume (BV) percentage exceeding specified strain limits. Implant version, bone stiffness and load magnitude were the most sensitive parameters. The results were more consistent using percentage BV under specified limit strains as the performance indicator, even for a low number of simulations. The reliability of the computational tool was demonstrated through a comparison with previous studies, and the consistency of the results for all strain limits investigated.
Dopico-González
Carolina
C
Bioengineering Research Group, School of Engineering Sciences, University of Southampton, Southampton, UK. cdg@soton.ac.uk
New
Andrew M
AM
Browne
Martin
M
D019644:Arthroplasty, Replacement, Hip / Q000379:methods* / Q000706:statistics & numerical data; D001696:Biomechanical Phenomena; D001698:Biomedical Engineering; D019295:Computational Biology; D003198:Computer Simulation; D005269:Femur / Q000033:anatomy & histology / Q000601:surgery; D020342:Finite Element Analysis; D006622:Hip Prosthesis / Q000706:statistics & numerical data; D006801:Humans; D008953:Models, Anatomic; D015233:Models, Statistical; D009010:Monte Carlo Method; D011474:Prosthesis Design