3D finite element modeling of pelvic organ prolapse.

Abstract:

OBJECTIVES:The purpose of this study is to develop a validated 3D finite element model of the pelvic floor system which can offer insights into the mechanics of anterior vaginal wall prolapse and have the ability to assess biomedical device treatment methods. The finite element results should accurately mimic the clinical findings of prolapse due to intra-abdominal pressure (IAP) and soft tissues impairment conditions. METHODS:A 3D model of pelvic system was created in Creo Parametric 2.0 based on MRI Images, which included uterus, cervix, vagina, cardinal ligaments, uterosacral ligaments, and a simplified levator plate and rectum. The geometrical model was imported into ANSYS Workbench 14.5. Mechanical properties of soft tissues were based on experimental data of tensile test results from current literature. Studies were conducted for IAP loadings on the vaginal wall and uterus, increasing from lowest to extreme values. RESULTS:Anterior vaginal wall collapse occurred at an IAP value corresponding to maximal valsalva and showed similar collapsed shape as clinical findings. Prolapse conditions exhibited high sensitivity to vaginal wall stiffness, whereas healthy tissues was found to support the vagina against prolapse. Ligament impairment was found to have only a secondary effect on prolapse.

authors

Yang Z,Hayes J,Krishnamurty S,Grosse IR

doi

10.1080/10255842.2016.1186662

subject

Has Abstract

pub_date

2016-12-01 00:00:00

pages

1772-1784

issue

16

eissn

1025-5842

issn

1476-8259

journal_volume

19

pub_type

杂志文章
  • Subject-specific body segment parameters' estimation using biplanar X-rays: a feasibility study.

    abstract::In order to improve the reliability of children's models, the aim of this study was to determine the subject-specific masses and 3D locations of the centres of mass (CoM) of body segments using biplanar X-rays. Previous methods, validated on upper leg segments, were applied to the whole body. Six children and six adul...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255841003717608

    authors: Sandoz B,Laporte S,Skalli W,Mitton D

    更新日期:2010-12-01 00:00:00

  • The contribution of the glenoid labrum to glenohumeral stability under physiological joint loading using finite element analysis.

    abstract::The labrum contributes to passive glenohumeral joint stability. Cadaveric studies have demonstrated that this has position and load dependency, which has not been quantified under physiological loads. This study aims to validate subject-specific finite element (FE) models against in vitro measurements of joint stabili...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2017.1399262

    authors: Klemt C,Nolte D,Grigoriadis G,Di Federico E,Reilly P,Bull AMJ

    更新日期:2017-11-01 00:00:00

  • Global/local head models to analyse cerebral blood vessel rupture leading to ASDH and SAH.

    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

    authors: Zoghi-Moghadam M,Sadegh AM

    更新日期:2009-02-01 00:00:00

  • Biomechanical assessment and clinical analysis of different intramedullary nailing systems for oblique fractures.

    abstract::The aim of this study is to evaluate the fracture union or non-union for a specific patient that presented oblique fractures in tibia and fibula, using a mechanistic-based bone healing model. Normally, this kind of fractures can be treated through an intramedullary nail using two possible configurations that depends o...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2015.1125473

    authors: Alierta JA,Pérez MA,Seral B,García-Aznar JM

    更新日期:2016-09-01 00:00:00

  • Cluster analysis of pressure pain threshold maps from the trapezius muscle.

    abstract::The aim of this study was to investigate and present a new mapping method to describe muscle pain sensitivity based on the assessment of pressure pain threshold (PPT) over the trapezius muscle. PPT data were recorded from 36 points in 20 healthy males using a standardised grid. Points were clustered using the K-means ...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255840903446979

    authors: Binderup AT,Arendt-Nielsen L,Madeleine P

    更新日期:2010-12-01 00:00:00

  • Influence of mastication and edentulism on mandibular bone density.

    abstract::The aim of this study was to demonstrate that external loading due to daily activities, including mastication, speech and involuntary open-close cycles of the jaw contributes to the internal architecture of the mandible. A bone remodelling algorithm that regulates the bone density as a function of stress and loading c...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2013.792916

    authors: Chou HY,Satpute D,Müftü A,Mukundan S,Müftü S

    更新日期:2015-01-01 00:00:00

  • Finite element analysis of the meniscectomised tibio-femoral joint: implementation of advanced articular cartilage models.

    abstract::The article presents advanced computer simulations aimed at the accurate modelling of human tibio-femoral joints (TFJs) in terms of anatomy, physiological loading and constitutive behaviour of the tissues. The main objective of this research is to demonstrate the implications that the implementation of different artic...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2012.758253

    authors: Mattei L,Campioni E,Accardi MA,Dini D

    更新日期:2014-01-01 00:00:00

  • A mathematical model of epiphyseal development: hypothesis of growth pattern of the secondary ossification centre.

    abstract::This paper introduces a 'hypothesis about the growth pattern of the secondary ossification centre (SOC)', whereby two phases are assumed. First, the formation of cartilage canals as an event essential for the development of the SOC. Second, once the canals are merged in the central zone of the epiphysis, molecular fac...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2010.484810

    authors: Garzón-Alvarado DA,Peinado Cortés LM,Cárdenas Sandoval RP

    更新日期:2011-01-01 00:00:00

  • Gaussian curvature analysis allows for automatic block placement in multi-block hexahedral meshing.

    abstract::Musculoskeletal finite element analysis (FEA) has been essential to research in orthopaedic biomechanics. The generation of a volumetric mesh is often the most challenging step in a FEA. Hexahedral meshing tools that are based on a multi-block approach rely on the manual placement of building blocks for their mesh gen...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2010.499869

    authors: Ramme AJ,Shivanna KH,Magnotta VA,Grosland NM

    更新日期:2011-10-01 00:00:00

  • Finite element models of the thigh-buttock complex for assessing static sitting discomfort and pressure sore risk: a literature review.

    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

    pub_type: 杂志文章,评审

    doi:10.1080/10255842.2018.1466117

    authors: Savonnet L,Wang X,Duprey S

    更新日期:2018-03-01 00:00:00

  • Automated generation of tissue-specific three-dimensional finite element meshes containing ellipsoidal cellular inclusions.

    abstract::Finite element analysis provides a means of describing cellular mechanics in tissue, which can be useful in understanding and predicting physiological and pathological changes. Many prior studies have been limited to simulations of models containing single cells, which may not accurately describe the influence of mech...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2014.900545

    authors: Bennetts CJ,Sibole S,Erdemir A

    更新日期:2015-01-01 00:00:00

  • Further Roles of Geometry and Properties in the Mechanics of Saccular Aneurysms.

    abstract::Rupture of intracranial saccular aneurysms continues to result in significant morbidity and mortality. Although it has long been thought that biomechanical factors play key roles in the genesis, growth, and rupture of these lesions, few analysis have employed realistic descriptions of the geometries and material prope...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/01495739708936698

    authors: Shah AD,Harris JL,Kyriacou SK,Humphrey JD

    更新日期:1998-01-01 00:00:00

  • How does muscle stiffness affect the internal deformations within the soft tissue layers of the buttocks under constant loading?

    abstract::Mechanical loading of soft tissues covering bony prominences can cause skeletal muscle damage, ultimately resulting in a severe pressure ulcer termed deep tissue injury (DTI). Deformation plays an important role in the aetiology of DTI. Therefore, it is essential to minimise internal muscle deformations in subjects at...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2011.627682

    authors: Loerakker S,Solis LR,Bader DL,Baaijens FP,Mushahwar VK,Oomens CW

    更新日期:2013-01-01 00:00:00

  • Application of a semi-automatic cartilage segmentation method for biomechanical modeling of the knee joint.

    abstract::Manual segmentation of articular cartilage from knee joint 3D magnetic resonance images (MRI) is a time consuming and laborious task. Thus, automatic methods are needed for faster and reproducible segmentations. In the present study, we developed a semi-automatic segmentation method based on radial intensity profiles ...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2017.1375477

    authors: Liukkonen MK,Mononen ME,Tanska P,Saarakkala S,Nieminen MT,Korhonen RK

    更新日期:2017-10-01 00:00:00

  • Role of differential adhesion in cell cluster evolution: from vasculogenesis to cancer metastasis.

    abstract::Cell-cell and cell-matrix adhesions are fundamental to numerous physiological processes, including angiogenesis, tumourigenesis, metastatic spreading and wound healing. We use cellular potts model to computationally predict the organisation of cells within a 3D matrix. The energy potentials regulating cell-cell (JCC) ...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2013.792917

    authors: Singh J,Hussain F,Decuzzi P

    更新日期:2015-01-01 00:00:00

  • Numerical models of auto-regulation and blood flow in the cerebral circulation.

    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

    pub_type: 杂志文章

    doi:10.1080/10255840290032171

    authors: Ferrandez A,David T,Brown MD

    更新日期:2002-02-01 00:00:00

  • Finite element modelling of radial shock wave therapy for chronic plantar fasciitis.

    abstract::Therapeutic use of high-amplitude pressure waves, or shock wave therapy (SWT), is emerging as a popular method for treating musculoskeletal disorders. However, the mechanism(s) through which this technique promotes healing are unclear. Finite element models of a shock wave source and the foot were constructed to gain ...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2015.1096348

    authors: Alkhamaali ZK,Crocombe AD,Solan MC,Cirovic S

    更新日期:2016-01-01 00:00:00

  • Biomechanical properties of the pelvic floor muscles of continent and incontinent women using an inverse finite element analysis.

    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

    authors: Silva MET,Brandão S,Parente MPL,Mascarenhas T,Natal Jorge RM

    更新日期:2017-06-01 00:00:00

  • Using the finite element method to model the biomechanics of the asymmetric mandible before, during and after skeletal correction by distraction osteogenesis.

    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

    authors: Cattaneo PM,Kofod T,Dalstra M,Melsen B

    更新日期:2005-06-01 00:00:00

  • Maxillary expansion treatment using bone anchors: development and validation of a 3D finite element model.

    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 di...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255840601098098

    authors: Fang Y,Lagravère MO,Carey JP,Major PW,Toogood RR

    更新日期:2007-04-01 00:00:00

  • Medical image registration using fuzzy theory.

    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

    authors: Pan M,Tang J,Xiong Q

    更新日期:2012-01-01 00:00:00

  • QCT/FEA predictions of femoral stiffness are strongly affected by boundary condition modeling.

    abstract::Quantitative computed tomography-based finite element models of proximal femora must be validated with cadaveric experiments before using them to assess fracture risk in osteoporotic patients. During validation, it is essential to carefully assess whether the boundary condition (BC) modeling matches the experimental c...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2015.1006209

    authors: Rossman T,Kushvaha V,Dragomir-Daescu D

    更新日期:2016-01-01 00:00:00

  • A new training algorithm using artificial neural networks to classify gender-specific dynamic gait patterns.

    abstract::The aim of this study was to present a new training algorithm using artificial neural networks called multi-objective least absolute shrinkage and selection operator (MOBJ-LASSO) applied to the classification of dynamic gait patterns. The movement pattern is identified by 20 characteristics from the three components o...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2013.803081

    authors: Andrade A,Costa M,Paolucci L,Braga A,Pires F,Ugrinowitsch H,Menzel HJ

    更新日期:2015-01-01 00:00:00

  • Simulation of the behaviour of the L1 vertebra for different material properties and loading conditions.

    abstract::Three-dimensional finite element models of the thoracolumbar junction (T12-L2) and isolated L1 vertebra were developed to investigate the role of material properties and loading conditions on vertebral stresses and strains to predict fracture risk. The geometry of the vertebrae was obtained from computed tomography im...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2011.636741

    authors: Erdem I,Truumees E,van der Meulen MC

    更新日期:2013-01-01 00:00:00

  • A neurofuzzy inference system based on biomechanical features for the evaluation of the effects of physical training.

    abstract::The current study aimed to evaluate physical training effects. For this purpose, a classifier was implemented by taking into account biomechanical features selected from force-plate measurements and a neurofuzzy algorithm for data management and relevant decision-making. Measurements included two sets of sit-to-stand ...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章,随机对照试验

    doi:10.1080/10255840701550915

    authors: Vannozzi G,Pecoraro F,Caserotti P,Cappozzo A

    更新日期:2008-02-01 00:00:00

  • A semi-automated method for hexahedral mesh construction of human vertebrae from CT scans.

    abstract::Generation of finite element (FE) meshes of vertebrae from computed tomography (CT) scans is labour intensive due to their geometric complexity. As such, techniques that simplify creation of meshes of vertebrae are needed to make FE analysis feasible for large studies and clinical applications. Techniques to obtain a ...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255840902802883

    authors: Dai Y,Niebur GL

    更新日期:2009-10-01 00:00:00

  • A human model for road safety: from geometrical acquisition to model validation with radioss.

    abstract::In order to investigate injury mechanisms, and to provide directions for road safety system improvements, the HUMOS project has lead to the development of a 3D finite element model of the human body in driving position. The model geometry was obtained from a 50th percentile adult male. It includes the description of a...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255840310001606080

    authors: Behr M,Arnoux PJ,Serre T,Bidal S,Kang HS,Thollon L,Cavallero C,Kayvantash K,Brunet C

    更新日期:2003-08-01 00:00:00

  • Development and validation of a finite element model of a small female pedestrian.

    abstract::Pedestrians are the most vulnerable road user and represent about 23% of the road traffic deaths in the world. A finite element (FE) model corresponding to a 5th percentile female pedestrian (F05-PS) was developed by morphing the Global Human Body Models Consortium (GHBMC) 50th percentile male pedestrian (M50-PS) mode...

    journal_title:Computer methods in biomechanics and biomedical engineering

    pub_type: 杂志文章

    doi:10.1080/10255842.2020.1801652

    authors: Pak W,Meng Y,Schap J,Koya B,Gayzik FS,Untaroiu CD

    更新日期:2020-12-01 00:00:00

  • Implementation and validation of probabilistic models of the anterior longitudinal ligament and posterior longitudinal ligament of the cervical spine.

    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

    authors: Francis WL,Eliason TD,Thacker BH,Paskoff GR,Shender BS,Nicolella DP

    更新日期:2014-01-01 00:00:00

  • A finite element model of the face including an orthotropic skin model under in vivo tension.

    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

    authors: Flynn C,Stavness I,Lloyd J,Fels S

    更新日期:2015-01-01 00:00:00