Stress distribution in cylindrical and conical implants under rotational micromovement with different boundary conditions and bone properties: 3-D FEA.

abstract：:Sparse geometric information from limited field-of-view medical images is often used to reconstruct the femur in biomechanical models of the hip and knee. However, the full femur geometry is needed to establish boundary conditions such as muscle attachment sites and joint axes which define the orientation of joint loa...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Zhang J,Besier TF

更新日期：2017-04-01 00:00:00

abstract：:This study deals with recent researches undertaken by the authors in the field of hydrodynamics of human swimming. The aim of this numerical study was to investigate the flow around the entire swimmer's body. The results presented in this article focus on the combination of a 3D computational fluid dynamics code and t...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Popa CV,Arfaoui A,Fohanno S,Taïar R,Polidori G

更新日期：2014-01-01 00:00:00

abstract：:Osteoporosis (OP) is common with advancing age. Several studies have shown a strong correlation between OP and otosclerosis. However, no studies have investigated OP of the malleus, incus or stapes in the human middle ear, its effect on middle ear transfer function. Here, we investigate whether these three ossicles de...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Zhou L,Shen N,Feng M,Liu H,Duan M,Huang X

更新日期：2019-10-01 00:00:00

abstract：:A three-dimensional finite element model is developed for the simulation of the sound transmission through the human auditory periphery consisting of the external ear canal, middle ear and cochlea. The cochlea is modelled as a straight duct divided into two fluid-filled scalae by the basilar membrane (BM) having an or...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Wang X,Wang L,Zhou J,Hu Y

更新日期：2014-08-01 00:00:00

abstract：:A two-dimensional time-dependent computational fluid dynamics model of the Circle of Willis has been developed. To simulate, not only the peripheral resistance of the cerebrovascular tree but also its auto-regulation function, a new "active" boundary condition has been defined and developed using control theory to pro...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Ferrandez A,David T,Brown MD

更新日期：2002-02-01 00:00:00

abstract：:A parametric investigation was conducted to determine the effects on the load estimation method of varying: (1) the thickness of back-plates used in the two-dimensional finite element models of long bones, (2) the number of columns of nodes in the outer medial and lateral sections of the diaphysis to which the back-pl...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Bona MA,Martin LD,Fischer KJ

更新日期：2006-08-01 00:00:00

abstract：:The flow effect on the concentration of platelet active substances in the vicinity of a mural microthrombus is investigated numerically. A three-dimensional model is employed in which the mural microthrombus is modelled as a semisphere attached to a plane surface. The description of the blood flow uses the three-dimen...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Karner G,Perktold K

更新日期：1998-01-01 00:00:00

abstract：:This paper simulates an axon with a region of reversed microtubule (MT) polarity, and investigates how the degree of polar mismatching in this region affects the formation of organelle traps in the axon. The model is based on modified Smith-Simmons equations governing molecular-motor-assisted transport in neurons. It ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Kuznetsov AV

更新日期：2010-12-01 00:00:00

abstract：:At present, computer assisted surgery systems help orthopaedic surgeons both plan and perform surgical procedures. To enable these systems to function, it is crucial to have at one's disposal 3D models of anatomical structures, surgical tools and prostheses (if required). This paper analyses and compares three methods...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Filippi S,Motyl B,Bandera C

更新日期：2009-02-01 00:00:00

abstract：:It is still unclear how a vertebral fracture should be stabilised and strengthened without endangering the remaining intact bone of the augmented vertebra or the adjacent vertebrae. Numerical modelling may provide insight. To date, however, few finite element (FE) spine models have been developed which are both multi-...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Dabirrahmani D,Becker S,Hogg M,Appleyard R,Baroud G,Gillies M

更新日期：2012-01-01 00:00:00

abstract：:Since the discovery of X-rays, medical imaging has played a major role in the guidance of surgical procedures. While medical imaging began with simple X-ray plates to indicate the presence of foreign objects within the human body, the advent of the computer has been a major factor in the recent development of this fie...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Peters TM

更新日期：2000-01-01 00:00:00

abstract：:The rate of bone loss is subject to considerable variation between individuals. With the 'mechanostat' model of Frost, genetic variations in bone mechanoresponsiveness are modelled by different mechanostat 'setpoints'--which may also change with age or disease. In this paper, the following setpoints are used: epsilonm...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Mulvihill BM,Prendergast PJ

更新日期：2008-10-01 00:00:00

abstract：:Being seated for long periods, while part of many leisure or occupational activities, can lead to discomfort, pain and sometimes health issues. The impact of prolonged sitting on the body has been widely studied in the literature, with a large number of human-body finite element models developed to simulate sitting an...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Savonnet L,Wang X,Duprey S

更新日期：2018-03-01 00:00:00

abstract：:Peristaltic motion of a non-Newtonian Carreau fluid is analyzed in a curved channel under the long wavelength and low Reynolds number assumptions, as a simulation of digestive transport. The flow regime is shown to be governed by a dimensionless fourth-order, nonlinear, ordinary differential equation subject to no-sli...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Ali N,Javid K,Sajid M,Anwar Bég O

更新日期：2016-01-01 00:00:00

abstract：:The evaluation of muscle and joint forces in vivo is still a challenge. Musculo-Skeletal (musculo-skeletal) models are used to compute forces based on movement analysis. Most of them are built from a scaled-generic model based on cadaver measurements, which provides a low level of personalization, or from Magnetic Res...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Dubois G,Rouch P,Bonneau D,Gennisson JL,Skalli W

更新日期：2016-11-01 00:00:00

abstract：:The mechanical properties of soft biological tissues in general and early stage engineered tissues in particular limit the feasibility of conventional tensile tests for their mechanical characterisation. Furthermore, the most important mode in development of deep tissue injury (DTI) is compression. Therefore, an inver...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Cox MA,Gawlitta D,Driessen NJ,Oomens CW,Baaijens FP

更新日期：2008-10-01 00:00:00

abstract：:A critical point in models of the human limbs when the aim is to investigate the motor control is the muscle model. More often the mechanical output of a muscle is considered as one musculotendon force that is a design variable in optimization tasks solved predominantly by static optimization. For dynamic conditions, ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Raikova R,Aladjov H

更新日期：2003-06-01 00:00:00

abstract：:Unbalanced contact force on the tibial component has been considered a factor leading to loosening of the implant and increased wear of the bearing surface in total knee arthroplasty. Because it has been reported that good alignment cannot guarantee successful clinical outcomes, the soft tissue balance should be check...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Oh KJ,Park WM,Kim K,Kim YH

更新日期：2014-01-01 00:00:00

abstract：:Burns in the airway from inhaling hot gases lead to one of the most common causes of death in the United States. In order to navigate tissues with large burn areas, the velocity, temperature, and heat flux distributions throughout the human airway system are computed for the inhalation of hot air using the finite-elem...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Park S

更新日期：2016-01-01 00:00:00

abstract：:Marker-based motion capture presents the problem of gaps, which are traditionally processed using motion capture software, requiring intensive manual input. We propose and study an automated method of gap-filling that uses inverse kinematics (IK) to close the loop of an iterative process to minimize error, while nearl...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Camargo J,Ramanathan A,Csomay-Shanklin N,Young A

更新日期：2020-11-01 00:00:00

abstract：:Functional Alignment is a new method to determine the orientation of a joint's primary rotational axis and the associated movement. It employs three unique concepts. First, data analyses are based upon assessment of spatial positions and not upon movement in a time sequence. Second, analyses are conducted on derived j...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Ball KA,Greiner TM

更新日期：2012-01-01 00:00:00

abstract：:This study evaluated the polymerization shrinkage stress of three tooth preparation designs for indirect ceramic overlay by finite element analysis: isthmus preparation (IST); without isthmus preparation (wIST); and non-retentive preparation (nRET). The models were created based in prepared dental typodonts and were d...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： de Andrade GS,Pinto ABA,Tribst JPM,Chun EP,Borges ALS,de Siqueira Ferreira Anzaloni Saavedra G

更新日期：2021-01-07 00:00:00

abstract：:The purpose of this study was to propose an innovative approach of setting outlet boundary conditions for the computational fluid dynamics (CFD) simulation of human common carotid arteries (CCAs) bifurcation based on the concept of energy loss minimisation at flow bifurcation. Comparisons between this new approach and...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Zhang Y,Furusawa T,Sia SF,Umezu M,Qian Y

更新日期：2013-01-01 00:00:00

abstract：:Stress analysis determines vulnerability of dental tissues to external loads. Stress values depend on loading conditions, mechanical properties and constrains of structural components. The critical stress levels lead to tissue damage. The aim of this study is to analyse dynamic stress distribution of lower second prem...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Khani MM,Tafazzoli-Shadpour M,Aghajani F,Naderi P

更新日期：2009-10-01 00:00:00

abstract：:Polyurethane (PU) foam is a material often used in biomechanical experiments and demands for the definition of crushable foam plasticity (CFP) in numerical simulations of the primary stability and deformation of implants, to describe the crushing behaviour appropriately. Material data of PU foams with five different d...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Schulze C,Vogel D,Sander M,Bader R

更新日期：2019-01-01 00:00:00

abstract：:In this review, we provide an overview of the simulation techniques employed for modelling the flow of red blood cells (RBCs) in blood plasma. The scope of this review omits the fluid modelling aspect while focusing on other key components in the RBC-plasma model such as (1) describing the RBC deformation with shell-b...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Ju M,Ye SS,Namgung B,Cho S,Low HT,Leo HL,Kim S

更新日期：2015-01-01 00:00:00

abstract：:This paper is motivated by recent experimental research (Tang-Schomer et al. 2012) on the formation of periodic varicosities in axons after traumatic brain injury (TBI). TBI leads to the formation of undulated distortions in the axons due to their dynamic deformation. These distortions result in the breakage of some m...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Kuznetsov IA,Kuznetsov AV

更新日期：2015-01-01 00:00:00

abstract：:Preoperative planning, or intraoperative navigation of hip surgery, including joint-preserving procedures such as osteotomy or joint-replacing procedures such as total arthroplasty, needs to be performed with a high degree of accuracy to ensure a successful outcome. The ability to precisely localise the hip joint rota...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Kang MJ,Sadri H,Stern R,Magnenat-Thalmann N,Hoffmeyer P,Ji HS

更新日期：2011-01-01 00:00:00

abstract：:Dialyser manufacturers only provide limited information about mass removal under well-defined flow and solute conditions in commercially available dialysers for hemodialysis. This computational study aimed at assessing the solute transport efficiency in a dialyser for different geometries (fiber lengths and diameters)...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Eloot S,Vierendeels J,Verdonck P

更新日期：2006-12-01 00:00:00

abstract：:Understanding of cancellous bone permeability is lacking despite its importance in designing tissue engineering scaffolds for bone regeneration and orthopaedic surgery that relies on infiltration of bone cement into porous cancellous bone. We employed micro-computational fluid dynamics to investigate permeability for ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Teo JC,Teoh SH

更新日期：2012-01-01 00:00:00