Numerical investigation of the effect of bone cement porosity on osteoporotic femoral augmentation

María E Santana Artiles, Demetrios T Venetsanos

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Femoroplasty is the injection of bone cement into the proximal femur, enhances the bone load capacity and is typically applied to osteoporotic femora. To minimize the required injected volume of bone cement and maximize the load capacity enhancement, an optimization problem must be solved, where the modulus of elasticity of the augmented bone is a key element. This paper, through the numerical investigation of a fall on the greater trochanter of an osteoporotic femur, compares different ways to calculate this modulus and introduces an approach, based on the concept of bone cement porosity, which provides results statistically similar to those obtained with other considerations. Based on this approach, the present paper quantifies the correlation between degree of osteoporosis and optimum volume of bone cement. It concludes with an exhaustive search that reveals the effect of the bone cement porosity on the optimum volume of PMMA, for various combinations of the frontal and transverse angles of the fall on the greater trochanter.

Original languageEnglish
Article numbere2989
JournalInternational Journal for Numerical Methods in Biomedical Engineering
Volume34
Issue number8
Early online date30 Mar 2018
DOIs
Publication statusPublished - Aug 2018

Keywords

  • Journal Article

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