Biomechanical Evaluation of Different Plating Methods Used in Mandibular Angle Fractures With 3-Dimensional Finite Element Analysis: Favorable Fractures

Ayalı, Aysa; Erkmen, Erkan

doi:10.1016/j.joms.2017.02.028

Cited by 16 publications

(2 citation statements)

References 21 publications

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“…FEM is widely used in obtaining detailed stress, strain and displacement distributions of the fractured mandible with fixation system. And it is verified by many studies that the results of the FEA is a valid, accurate, and non-invasive method to predict different parameters of the complex biomechanical behavior of human mandible [ 19 – 23 ].…”

Section: Introductionmentioning

confidence: 97%

A customized fixation plate with novel structure designed by topological optimization for mandibular angle fracture based on finite element analysis

et al. 2017

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BackgroundThe purpose of this study was to design a customized fixation plate for mandibular angle fracture using topological optimization based on the biomechanical properties of the two conventional fixation systems, and compare the results of stress, strain and displacement distributions calculated by finite element analysis (FEA).MethodsA three-dimensional (3D) virtual mandible was reconstructed from CT images with a mimic angle fracture and a 1 mm gap between two bone segments, and then a FEA model, including volume mesh with inhomogeneous bone material properties, three loading conditions and constraints (muscles and condyles), was created to design a customized plate using topological optimization method, then the shape of the plate was referenced from the stress concentrated area on an initial part created from thickened bone surface for optimal calculation, and then the plate was formulated as “V” pattern according to dimensions of standard mini-plate finally. To compare the biomechanical behavior of the “V” plate and other conventional mini-plates for angle fracture fixation, two conventional fixation systems were used: type A, one standard mini-plate, and type B, two standard mini-plates, and the stress, strain and displacement distributions within the three fixation systems were compared and discussed.ResultsThe stress, strain and displacement distributions to the angle fractured mandible with three different fixation modalities were collected, respectively, and the maximum stress for each model emerged at the mandibular ramus or screw holes. Under the same loading conditions, the maximum stress on the customized fixation system decreased 74.3, 75.6 and 70.6% compared to type A, and 34.9, 34.1, and 39.6% compared to type B. All maximum von Mises stresses of mandible were well below the allowable stress of human bone, as well as maximum principal strain. And the displacement diagram of bony segments indicated the effect of treatment with different fixation systems.ConclusionsThe customized fixation system with topological optimized structure has good biomechanical behavior for mandibular angle fracture because the stress, strain and displacement within the plate could be reduced significantly comparing to conventional “one mini-plate” or “two mini-plates” systems. The design methodology for customized fixation system could be used for other fractures in mandible or other bones to acquire better mechanical behavior of the system and improve stable environment for bone healing. And together with SLM, the customized plate with optimal structure could be designed and fabricated rapidly to satisfy the urgent time requirements for treatment.

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Section: Introductionmentioning

confidence: 97%

A customized fixation plate with novel structure designed by topological optimization for mandibular angle fracture based on finite element analysis

et al. 2017

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“…High convergence was done for all the results, as regards the von Mises stresses and displacement according to the study of Ayal and Ekmen [8] . The numbers of nodes and elements for the used models for the used models are presented in Table 3.…”

Section: Boundary Conditionsmentioning

confidence: 99%

Study of the effect of the shape of the miniplate on the stability of mandibular symphyseal fracture using finite element analysis

Mohammed

2019

OMX

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Introduction: Finite element analysis is a new technology used for mechanical designing, and showing the behavior of the body when subjected to different loads as regards the resulted stresses and displacement. Aim: The aim of this research was to detect the effect of the miniplate shape on stability of the mandibular symphyseal fracture. Patients/Methods: Through this study two configurations of the miniplates were compared. The two miniplates are equal in length, width, thickness and of the same material, only they are different in shapes, one plate was straight and the other was L shaped, they are investigated using three dimensional finite element software. Results: There was no significant difference between straight and L shaped miniplate, however the L shaped miniplate was slightly superior to straight miniplate as regard plate stability. Conclusion: There is no significant difference between the different systems. The shape of miniplate may have a role in stability of mandibular fracture stability, the same plate shows different behavior when fixed at different positions double plate shows more stability than single one ,of the same shape finite element technology is helpful means for designing of different fixation systems.

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A Finite Element Analysis of Single, Double & Matrix Miniplate in Fracture of the Mandibular ANGLE Region: An In Vitro Study

Subramanian

Rudagi

Londhe

et al. 2022

J. Maxillofac. Oral Surg.

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Biomechanical Evaluation of Different Plating Methods Used in Mandibular Angle Fractures With 3-Dimensional Finite Element Analysis: Favorable Fractures

Cited by 16 publications

References 21 publications

A customized fixation plate with novel structure designed by topological optimization for mandibular angle fracture based on finite element analysis

A customized fixation plate with novel structure designed by topological optimization for mandibular angle fracture based on finite element analysis

Study of the effect of the shape of the miniplate on the stability of mandibular symphyseal fracture using finite element analysis

A Finite Element Analysis of Single, Double & Matrix Miniplate in Fracture of the Mandibular ANGLE Region: An In Vitro Study

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