TY - JOUR
T1 - Numerical investigation of the effect of bone cement porosity on osteoporotic femoral augmentation
AU - Santana Artiles, María E.
AU - Venetsanos, Demetrios T.
N1 - Funding Information:
This work was supported by a PhD studentship from Kingston Engineering.
Publisher Copyright:
Copyright © 2018 John Wiley & Sons, Ltd.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018/8/1
Y1 - 2018/8/1
N2 - 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.
AB - 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.
KW - bone augmentation
KW - bone cement
KW - femoroplasty
KW - finite element analysis
KW - porosity
UR - http://www.scopus.com/inward/record.url?scp=85046163324&partnerID=8YFLogxK
U2 - 10.1002/cnm.2989
DO - 10.1002/cnm.2989
M3 - Article
AN - SCOPUS:85046163324
VL - 34
JO - International Journal for Numerical Methods in Biomedical Engineering
JF - International Journal for Numerical Methods in Biomedical Engineering
SN - 2040-7939
IS - 8
M1 - e2989
ER -