Abstract:
OBJECTIVE:Develop a finite element (FE) model of a skull to perform biomechanical studies of maxillary expansion using bone anchors (BA). MATERIALS AND METHODS:A skull model was developed and assigned material properties based on Hounsfield unit (HU) values of cone-beam computerized tomography (CBCT) images. A 3 mm diameter cylindrical BA was modelled and inserted in the palatal bone. A 4 mm transverse displacement was applied on the anchor. An evaluation on the effect on local stresses of BA implantation inclination angle was performed. RESULTS:Proper displacement results and strain-stress trends for the expansion process were present. Stress distribution patterns were similar as reported in the literature. No significant difference between BA inclination angles was found. CONCLUSION:This work leads to a better understanding and prediction of craniofacial and maxillary bone remodelling during ME with BA treatments and is a first step towards the development of patient specific treatments.
journal_name
Comput Methods Biomech Biomed Enginauthors
Fang Y,Lagravère MO,Carey JP,Major PW,Toogood RRdoi
10.1080/10255840601098098subject
Has Abstractpub_date
2007-04-01 00:00:00pages
137-49issue
2eissn
1025-5842issn
1476-8259pii
773169664journal_volume
10pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1080/10255842.2015.1055257
更新日期:2016-01-01 00:00:00
abstract::Mechanical stresses develop within vocal fold (VF) soft tissues due to phonation-associated vibration and collision. These stresses in turn affect the hydration of VF tissue and thus influence voice health. In this paper, high-fidelity numerical computations are described, taking into account fully 3D geometry, realis...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2013.772591
更新日期:2014-01-01 00:00:00
abstract::Most recent finite element models that represent muscles are generic or subject-specific models that use complex, constitutive laws. Identification of the parameters of such complex, constitutive laws could be an important limit for subject-specific approaches. The aim of this study was to assess the possibility of mo...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2011.564162
更新日期:2012-01-01 00:00:00
abstract::Mutual information (MI)-based registration, which uses MI as the similarity measure, is a representative method in medical image registration. It has an excellent robustness and accuracy, but with the disadvantages of a large amount of calculation and a long processing time. In this paper, by computing the medical ima...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2011.557372
更新日期:2012-01-01 00:00:00
abstract::Complexity represents the adaptability of the biological system, therefore the assessment of complexity during tasks such as walking may be particularly useful when attempting to better understand the recovery processes after stroke. The purpose of this study was to determine whether the complexity of lower extremity ...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2019.1578961
更新日期:2019-05-01 00:00:00
abstract::Retinal blood vessel detection and analysis play vital roles in early diagnosis and prevention of several diseases, such as hypertension, diabetes, arteriosclerosis, cardiovascular disease and stroke. This paper presents an automated algorithm for retinal blood vessel segmentation. The proposed algorithm takes advanta...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2010.545949
更新日期:2012-01-01 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
pub_type: 杂志文章
doi:10.1080/10255840701771768
更新日期:2008-10-01 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
pub_type: 杂志文章
doi:10.1080/10255842.2010.545821
更新日期:2012-01-01 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
pub_type: 杂志文章
doi:10.1080/10255842.2020.1789971
更新日期:2020-11-01 00:00:00
abstract::A numerical pressure loss model previously used for adult human airways has been modified to simulate the inhalation pressure distribution in a healthy 9-month-old infant lung morphology model. Pressure distributions are calculated for air as well as helium and xenon mixtures with oxygen to investigate the effects of ...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2014.903932
更新日期:2015-01-01 00:00:00
abstract::Computer models of the human face have the potential to be used as powerful tools in surgery simulation and animation development applications. While existing models accurately represent various anatomical features of the face, the representation of the skin and soft tissues is very simplified. A computer model of the...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2013.820720
更新日期:2015-01-01 00:00:00
abstract::When treating thoracolumbar burst fractures (BF), short-segment posterior fixation (SSPF) represents a less invasive alternative to the traditional long-segment posterior fixation (LSPF) approach. However, hardware failure and loss of sagittal alignment have been reported in patients treated with SSPF. Including pedic...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2017.1366995
更新日期:2017-10-01 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
pub_type: 杂志文章,评审
doi:10.1080/10255840008907997
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVES:The purpose of the present study was to evaluate the distribution and magnitude of stresses through the bone tissue surrounding Morse taper dental implants at different positioning relative to the bone crest. MATERIALS AND METHODS:A mandibular bone model was obtained from a computed tomography scan. A three...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2018.1507025
更新日期:2018-09-01 00:00:00
abstract::An approach was developed to evaluate the load transfer mechanism in the temporomandibular joint (TMJ) area before, during and after mandibular ramus elongation by distraction osteogenesis (DO). In a concerted approach using computer tomography, magnetic resonance imaging (MRI), and finite element analysis, three-dime...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255840500237953
更新日期:2005-06-01 00:00:00
abstract::Human brain tissue is complex and multi-component in nature. It consists of an anisotropic hyperelastic solid material composed of tissue cells and blood vessel walls. Brain tissue is permeated by two viscous pore liquids, the interstitial fluid and the blood. Both liquids are mobile within the tissue and exhibit a si...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2013.853754
更新日期:2015-01-01 00:00:00
abstract::The decompensated univentricular circulation is identified as one of the most challenging conditions and the application of the mechanical circulatory support (MCS) devices is proposed as therapeutic option for Fontan failure. Modelling methodologies are reported to identify the optimized types, extent and duration of...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2020.1843640
更新日期:2021-01-11 00:00:00
abstract::Local oxygen lack in arterial walls (hypoxia) plays a very important role in the initiation, progression and development of intimal hyperplasia (IH) and thrombosis. Aiming to find out whether a helical-type artery bypass graft (ABG) is hypoxia beneficial, a numerical study was carried out to compare oxygen transport b...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2012.702764
更新日期:2014-04-01 00:00:00
abstract::Blunt and rotational head impacts due to vehicular collisions, falls and contact sports cause relative motion between the brain and skull. This increases the normal and shear stresses in the (skull/brain) interface region consisting of cerebrospinal fluid (CSF) and subarachnoid space (SAS) trabeculae. The relative mot...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255840903064897
更新日期:2009-02-01 00:00:00
abstract::In the present study, the free fall impact test in accordance with the EN1078 standard for certification of bicycle helmets is replicated using numerical simulations. The impact scenario is simulated using an experimentally validated, patient-specific head model equipped with and without a bicycle helmet. Head acceler...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2018.1511775
更新日期:2018-09-01 00:00:00
abstract::Anterior percutaneous endoscopic cervical discectomy (APECD) is a common treatment for cervical spondylotic radiculopathy (CSR). In this study, the effects of various channel diameters and approach angles on cervical vertebrae on postoperative outcomes in APECD surgery were explored. A finite element model of intact c...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2020.1846186
更新日期:2020-12-01 00:00:00
abstract::This paper proposes a micromechanics algorithm utilising the finite element method (FEM) for the analysis of heterogeneous matter. The characterisation procedure takes the material properties of the constituents, axons and extracellular matrix (ECM) as input data. The material properties of both the axons and the matr...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255840903097871
更新日期:2009-06-01 00:00:00
abstract::The phenotype expression in X-linked adrenoleukodystrophy is one of the most intriguing issues of the disease, because there is no general correlation between the type of ABCD1 gene mutation and the clinical phenotype. In this study, we use the cross-impact analysis to build a descriptively quantitative relationship b...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255840903279974
更新日期:2010-06-01 00:00:00
abstract::This paper analyses the mechanical behaviour of a new reinforced anatomical post-systems (RAPS) for endodontic restoration. The composite restorative material (CRM) completely fills the root canal (as do the commonly used cast metal posts) and multiple prefabricated composite posts (PCPs) are employed as reinforcement...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255840903065530
更新日期:2009-02-01 00:00:00
abstract::In this study, the effects of medial collateral ligament (MCL) release and the limb correction strategies with pre-existing MCL laxity on tibiofemoral contact force distribution after high tibial osteotomy (HTO) were investigated. The medial and lateral contact forces of the knee were quantified during simulated stand...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2018.1549658
更新日期:2019-02-01 00:00:00
abstract::This paper presents a procedure for characterising the mechanical properties of skin using stochastic inverse identification. It is based on the minimisation of a cost function relative to the comparison between experimental suction experiments and their corresponding finite element models. Two different models are co...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2011.633904
更新日期:2012-01-01 00:00:00
abstract::The present paper describes a geometrically and physically nonlinear continuum model to study the mechanical behaviour of passive and active skeletal muscle. The contraction is described with a Huxley type model. A Distributed Moments approach is used to convert the Huxley partial differential equation in a set of ord...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255840008915267
更新日期:2000-01-01 00:00:00
abstract::Pelvic disorders can be associated with changes in the biomechanical properties in the muscle, ligaments and/or connective tissue form fascia and ligaments. In this sense, the study of their mechanical behavior is important to understand the structure and function of these biological soft tissues. The aim of this stud...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2017.1304542
更新日期:2017-06-01 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
pub_type: 杂志文章
doi:10.1080/10255842.2013.820721
更新日期:2015-01-01 00:00:00
abstract::The objective of this investigation was to develop probabilistic finite element (FE) models of the anterior longitudinal ligament (ALL) and posterior longitudinal ligament (PLL) of the cervical spine that incorporate the natural variability of biological specimens. In addition to the model development, a rigorous vali...
journal_title:Computer methods in biomechanics and biomedical engineering
pub_type: 杂志文章
doi:10.1080/10255842.2012.726353
更新日期:2014-01-01 00:00:00