3D-FEM and histomorphology of mandibular reconstruction with the titanium functionally dynamic bridging plate

Schuller‐Götzburg, Peter; Pleschberger, M.; Rammerstorfer, F.G.; Krenkel, C

doi:10.1016/j.ijom.2009.07.060

Cited by 18 publications

(21 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, these two-dimensional elements provide an excellent mechanical behaviour and could be used to model the screws and the connections to the three-dimensional elements of the bone. Even the analysis of an equivalent osteosynthesis system is possible with this technique [19]. This approach decreases the computational costs for the analysis but at the same time increases the modelling effort for the screws and their connections to the bone.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Osteosynthesis Screw Fixation in the Bone Stock: An Appropriate Method for Automatic Screw Modelling

Wieding

Souffrant²,

Fritsche³

et al. 2012

PLoS ONE

View full text Add to dashboard Cite

The use of finite element analysis (FEA) has grown to a more and more important method in the field of biomedical engineering and biomechanics. Although increased computational performance allows new ways to generate more complex biomechanical models, in the area of orthopaedic surgery, solid modelling of screws and drill holes represent a limitation of their use for individual cases and an increase of computational costs. To cope with these requirements, different methods for numerical screw modelling have therefore been investigated to improve its application diversity. Exemplarily, fixation was performed for stabilization of a large segmental femoral bone defect by an osteosynthesis plate. Three different numerical modelling techniques for implant fixation were used in this study, i.e. without screw modelling, screws as solid elements as well as screws as structural elements. The latter one offers the possibility to implement automatically generated screws with variable geometry on arbitrary FE models. Structural screws were parametrically generated by a Python script for the automatic generation in the FE-software Abaqus/CAE on both a tetrahedral and a hexahedral meshed femur. Accuracy of the FE models was confirmed by experimental testing using a composite femur with a segmental defect and an identical osteosynthesis plate for primary stabilisation with titanium screws. Both deflection of the femoral head and the gap alteration were measured with an optical measuring system with an accuracy of approximately 3 µm. For both screw modelling techniques a sufficient correlation of approximately 95% between numerical and experimental analysis was found. Furthermore, using structural elements for screw modelling the computational time could be reduced by 85% using hexahedral elements instead of tetrahedral elements for femur meshing. The automatically generated screw modelling offers a realistic simulation of the osteosynthesis fixation with screws in the adjacent bone stock and can be used for further investigations.

show abstract

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Osteosynthesis Screw Fixation in the Bone Stock: An Appropriate Method for Automatic Screw Modelling

Wieding

Souffrant²,

Fritsche³

et al. 2012

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…The mandible deformed in a helical pattern upwards and towards the working side, with regions of high tensile stress (15-25 MPa) from the coronoid process and ramus towards the lingual side of the symphysis. The highest value of compressive stress (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25) was at the bite point and bilateral sigmoid notches, at the working side angle and in an area from the posterior surface of the balancing side ramus running to the lower border of the body till the symphysis. This then runs up to the buccal side from the inferior until the bite point.…”

Section: Biomechanics Of the Intact Mandiblementioning

confidence: 99%

“…A partially dentate mandible of a cadaveric male was used to create a model with defect in the front and back. The authors (Schuller-Gotzburg et al, [19]) studied the effects and change in bone stress after caudal and buccal placement of placing a bridging plate. In this study, bridging plate alone in a conventional placement, bone grafts fixed with small miniplates to the remnant mandible and also placement of a bridging plate in a caudal and then buccal location for the reconstruction.…”

Section: Reconstruction Plates For Bridging Mandibular Defectsmentioning

confidence: 99%

The Role of Finite Element Analysis in Studying Potential Failure of Mandibular Reconstruction Methods

Wong¹,

Loh²,

Islam³

2016

Perusal of the Finite Element Method

View full text Add to dashboard Cite

Defects of the mandible occur after trauma or resection after infection or tumours. There have been many methods espoused, but many methods can fail especially if the biomechanics of the mandible is not considered fully. As the only moveable, loadbearing bone of the skull, the mandible is subject to loads and stresses unique to it due to its shape, location and function. This chapter reviews the basic knowledge of the mandible necessary to perform finite element analysis, the challenges and then reviews several studies that have been done. The authors' personal research is detailed to illustrate how finite element analysis can be used to look at potential failure of a new method for mandibular reconstruction and implant evaluation.

show abstract

“…SCHULLER-GOTZBURG et al produced a 3D FE model to study the effects and change in bone stress after applying a bridging plate (titanium functionally dynamic bridging plate) in caudal and buccal positions 17 . The authors used the partially dentate cadaveric mandible of a 33-year-old male to create a model with anterior and lateral defects.…”

Section: [ ( ) T D $ F I G ]mentioning

confidence: 99%

Review of biomechanical models used in studying the biomechanics of reconstructed mandibles

Wong

Tideman

Merkx

et al. 2011

International Journal of Oral and Maxillofacial Surgery

View full text Add to dashboard Cite

3D-FEM and histomorphology of mandibular reconstruction with the titanium functionally dynamic bridging plate

Cited by 18 publications

References 24 publications

Finite Element Analysis of Osteosynthesis Screw Fixation in the Bone Stock: An Appropriate Method for Automatic Screw Modelling

Finite Element Analysis of Osteosynthesis Screw Fixation in the Bone Stock: An Appropriate Method for Automatic Screw Modelling

The Role of Finite Element Analysis in Studying Potential Failure of Mandibular Reconstruction Methods

Review of biomechanical models used in studying the biomechanics of reconstructed mandibles

Contact Info

Product

Resources

About