Specimen-specific finite element prediction of surface strain at the distal radius in a fall configuration

Revel, M.; Bermond, François; Mitton, David; Follet, Hélène

doi:10.1080/10255842.2020.1815311

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…The finite element models consisted of tetrahedron elements with an element size of 1 mm. The element size was chosen by considering the convergence of the result, the calculation time consumed for analysis using our workstation, and the fact that this element size provides a reasonable result according to several previous studies [ 21 , 26 , 27 ]. The number of nodes and elements were 42,661 and 218,392, respectively.…”

Section: Methodsmentioning

confidence: 99%

Variations in Strain Distribution at Distal Radius under Different Loading Conditions

Pramudita

Hiroki

Yoda

et al. 2022

Life

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Distal radial fractures exhibit various fracture patterns. By assuming that the strain distribution at the distal radius affects the diversification of the fracture pattern, a parameter study using the finite element model of a wrist developed from computed tomography (CT) images was performed under different loading conditions. The finite element model of the wrist consisted of the radius, ulna, scaphoid, lunate, triquetrum, and major carpal ligaments. The material properties of the bone models were assigned on the basis of the Hounsfield Unit (HU) values of the CT images. An impact load was applied to the scaphoid, lunate, and triquetrum to simulate boundary conditions during fall accidents. This study considered nine different loading conditions that combine three different loading directions and three different load distribution ratios. According to the analysis results, the strain distribution at the distal radius changed with respect to the change in the loading condition. High strain concentration occurred in regions where distal radius fractures are commonly developed. The direction and distribution of the load acting on the radius were considered to be factors that may cause variations in the fracture pattern of distal radius fractures.

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Section: Methodsmentioning

confidence: 99%

Variations in Strain Distribution at Distal Radius under Different Loading Conditions

Pramudita

Hiroki

Yoda

et al. 2022

Life

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“…In contrast to experimental studies, numerical bone studies, especially in veterinary medicine, were in limited quantities. However, Finite Element Analysis (FEA) has been widely applied and provided valuable insights into explaining distal radius ulna fractures in humans [ 12 , 19 , 33 , 36 , 43 ]. The introduction of FEA has demonstrated enormous potential in resolving various biomedical engineering issues.…”

mentioning

confidence: 99%

Elucidation of the radius and ulna fracture mechanisms in toy poodle dogs using finite element analysis

ANGGORO,

PURBA,

JIANG

et al. 2024

The Journal of Veterinary Medical Science

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Fractures occurring in the distal radius and ulna of toy breed dogs pose distinctive challenges for veterinary practitioners, requiring specialized treatment approaches primarily based on anatomical features. Finite Element Analysis (FEA) was applied to conduct numerical experiments to determine stress distribution across the bone. This methodology offers an alternative substitute for directly investigating these phenomena in living dog experiments, which could present ethical obstacles. A three-dimensional bone model of the metacarpal, carpal, radius, ulna, and humerus was reconstructed from Computed Tomography (CT) images of the toy poodle and dachshund forelimb. The model was designed to simulate the jumping and landing conditions from a vertical distance of 40 cm to the ground within a limited timeframe. The investigation revealed considerable variations in stress distribution patterns between the radius and ulna of toy poodles and dachshunds, indicating notably elevated stress levels in toy poodles compared to dachshunds. In static and dynamic stress analysis, toy poodles exhibit peak stress levels at the distal radius and ulna. The Von Mises stresses for toy poodles reach 90.07 MPa (static) and 1090.75 MPa (dynamic) at the radius and 1677.97 MPa (static) and 1047.98 MPa (dynamic) at the ulna. Conversely, dachshunds demonstrate lower stress levels for 5.39 MPa (static) and 231.79 MPa (dynamic) at the radius and 390.56 MPa (static) and 513.28 MPa (dynamic) at the ulna. The findings offer valuable insights for modified treatment approaches in managing fractures in toy breed dogs, optimizing care and outcomes.

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Specimen-specific finite element prediction of surface strain at the distal radius in a fall configuration

Cited by 2 publications

References 9 publications

Variations in Strain Distribution at Distal Radius under Different Loading Conditions

Variations in Strain Distribution at Distal Radius under Different Loading Conditions

Elucidation of the radius and ulna fracture mechanisms in toy poodle dogs using finite element analysis

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