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Computer Methods and Programs in Biomedicine
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Computer Methods and Programs in Biomedicine
Article . 2019 . Peer-reviewed
License: Elsevier TDM
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Article . 2019
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Numerical modelling of hip fracture patterns in human femur

Authors: Miguel Marco; Eugenio Giner; José Ramón Caeiro-Rey; Maria Henar Miguelez; Ricardo Larraínzar-Garijo;

Numerical modelling of hip fracture patterns in human femur

Abstract

Hip fracture morphology is an important factor determining the ulterior surgical repair and treatment, because of the dependence of the treatment on fracture morphology. Although numerical modelling can be a valuable tool for fracture prediction, the simulation of femur fracture is not simple due to the complexity of bone architecture and the numerical techniques required for simulation of crack propagation. Numerical models assuming homogeneous fracture mechanical properties commonly fail in the prediction of fracture patterns. This paper focuses on the prediction of femur fracture based on the development of a finite element model able to simulate the generation of long crack paths.The finite element model developed in this work demonstrates the capability of predicting fracture patterns under stance loading configuration, allowing the distinction between the main fracture paths: intracapsular and extracapsular fractures. It is worth noting the prediction of different fracture patterns for the same loading conditions, as observed during experimental tests.The internal distribution of bone mineral density and femur geometry strongly influences the femur fracture morphology and fracture load. Experimental fracture paths have been analysed by means of micro-computed tomography allowing the comparison of predicted and experimental crack surfaces, confirming the good accuracy of the numerical model.

Keywords

Trabecular bone, Male, Experimental validation, Composite femur, Extracapsular fracture, INGENIERIA MECANICA, Finite Element Analysis, Fracture morphology prediction, Failure, Strain, Bone Density, Finite-element models, Cadaver, Humans, Computer Simulation, Femur, Biología y Biomedicina, Aged, Fracture Healing, Femur fracture, Intracapsular fracture, X-Ray Microtomography, Models, Theoretical, Elasticity, Finite element modelling, Load, Female, Stress, Mechanical, Proximal femur, Prediction, Femoral Fractures, Simulation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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