Incidence of the boundary condition between bone and soft tissue in a finite element model of a transfemoral amputee

Prosthetics and Orthotics International
Juan Fernando Ramírez, Jaime Andrés Vélez

Abstract

Many finite element investigations have been made in the field of lower limb prosthetics; however, friction between bone and soft tissues as a boundary condition has not been considered. To establish whether the change in the contact boundary condition between bone and soft tissues in a transfemoral amputee affects the stress-strain state on the residual limb. Finite element analysis comparison. Finite element models of four transfemoral amputees were developed. In these models the socket, soft tissues and femur were included and two simulations were made for each model, in one of them the interaction between bone and soft tissues was defined as tied (there is no relative displacement between surfaces) and in the other it was defined as a friction boundary condition. The von Mises stress and strain peaks are higher when the friction definition is used than for tied contact definition. The distribution pattern of stresses and strains also change when the contact definition varies from tied to friction. It was concluded that the friction between bone and soft tissues have a significant impact on the results of finite element models of lower limb prosthetic systems, and therefore in its predictive capabilities. Clinical relevance ...Continue Reading

References

Dec 1, 1996·IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·M Zhang, A F Mak
Dec 4, 2003·Medical Engineering & Physics·Chih-Chieh LinI-Chen Liao
Jul 28, 2004·Journal of Biomechanics·Xiaohong JiaWinson C C Lee
Oct 9, 2004·Medical Engineering & Physics·Winson C C LeeJason T M Cheung
Jun 9, 2005·Medical Engineering & Physics·Mario C FaustiniRichard H Crawford
Oct 3, 2006·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Jeffrey T PeeryWilliam R Ledoux
Oct 24, 2006·Medical Engineering & Physics·Winson C C Lee, Ming Zhang
Jun 29, 2007·Medical Engineering & Physics·L DucheminD Mitton
Feb 23, 2008·Biomechanics and Modeling in Mechanobiology·A ChawlaB Karthikeyan
Apr 30, 2010·Biomechanics and Modeling in Mechanobiology·Cormac FlynnPoul Nielsen
Jul 31, 2010·Journal of Biomechanical Engineering·Sharon ShachamAmit Gefen
Sep 3, 2011·Annals of Biomedical Engineering·Damien Lacroix, Juan Fernando Ramírez Patiño

❮ Previous
Next ❯

Methods Mentioned

BETA
amputation

Software Mentioned

Solid Works
Invesalius
ABAQUS

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Disability and Rehabilitation. Assistive Technology
Elaine BiddissTom Chau
IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
S G Zachariah, J E Sanders
© 2022 Meta ULC. All rights reserved