Virtual Modeling and Numerical Simulations of the Latitude Prosthesis - Human Elbow Assembly

Tarniţă, Daniela; Boborelu, C.; Popa, Dinel; Malciu, Raluca

doi:10.1007/978-3-030-32564-0_83

Cited by 3 publications

(7 citation statements)

References 7 publications

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“…For this purpose, the surfaces of the ribs, vertebrae, the two portions of the femur, and other elements that were not of interest for our study were removed. Surface decimation methods were also used as well as “finishing” operations, which are described in more detail in other papers [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ].…”

Section: Resultsmentioning

confidence: 99%

“…The following simplifying assumptions were used in the analyses of the three orthopaedic systems: Knowing that orthopaedic cement, used in these orthopaedic prostheses, provides stability and fixation of the components, it was not geometrically modelled, and its behaviour was replaced with the use of bonded elements that practically provide cohesion of the elements between themselves [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]; It is known that, during the human gait, the variation of the force occurring in the hip joint varies between values of 0 N and about 2300 N. We have considered that it is sufficient to use an equivalent force that has a linear variation between the values of 800 N (characteristic of the orthostatic position) and 2300 N (maximum value of the force during normal human gait [ 26 , 27 , 28 , 29 , 30 , 31 , 39 , 42 ]); For revision prostheses using a morcellated bone graft, the study was considered to be performed after complete osseointegration of the graft, when it acquires the appearance and properties of the trabecular bone [ 26 , 27 , 28 , 39 ]. …”

Section: Methodsmentioning

confidence: 99%

“…Knowing that orthopaedic cement, used in these orthopaedic prostheses, provides stability and fixation of the components, it was not geometrically modelled, and its behaviour was replaced with the use of bonded elements that practically provide cohesion of the elements between themselves [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ];…”

Section: Methodsmentioning

confidence: 99%

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An Experimental and Virtual Approach to Hip Revision Prostheses

et al. 2022

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(1) Introduction: The changes in the joint morphology inevitably lead to prosthesis, but the hip pathology is complex. The hip arthroplasty is a therapeutic solution and can be caused, most frequently, by primary and secondary coxarthrosis due to or followed by traumatic conditions. The main aim of this study was to find the method of revision hip prosthesis that preserves as much bone material as possible and has sufficiently good mechanical strength. (2) Materials and Methods: In this study, in a first step, the two revision prostheses were performed on bone components taken from an animal (cow), and then, they were tested on a mechanical testing machine until the prostheses physically failed, and the force causing their failure was determined. (3) Results: These prostheses were then modelled in a virtual environment and tested using the finite element method (FEM) in order to determine their behaviour under loading from normal human gait. Displacement, strain, and stress maps were obtained. (4) Discussion: Discussions on hip revision prostheses, method, and theory analysis are presented at the end of the paper. (5) Conclusions: Important conclusions are drawn based on comparative analyses. The main conclusion shows that the both orthopaedic prostheses provide a very good resistance.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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An Experimental and Virtual Approach to Hip Revision Prostheses

et al. 2022

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“…In previous years, FEAs were used by several researchers for the simulation of biomedical mechanisms. 25 27 28 29 51…”

Section: Discussionmentioning

confidence: 99%

“…26 The same method was applied to determine the cartilage contact mechanics in the human elbow. 27 28 29 In 2017, Renani and colleagues proved that there are good correlation between the FEA and the measurements of the tactile pressure sensors in the human elbow joints when determining the contact mechanics of the elbow joint. 30…”

Section: Introductionmentioning

confidence: 99%

Performing a Three-Dimensional Finite Element Analysis to Simulate and Quantify the Contact Pressure in the Canine Elbow Joint: A Pilot Study

Rhode

Harms

Finck³

et al. 2022

Vet Comp Orthop Traumatol

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Objective The aim of this study was to measure surface pressures and force distribution on radius and ulna in healthy and dysplastic elbow joints in different positions using the finite element analysis (FEA). Study Design FEA was performed on computed tomographic data of healthy and fragmented coronoid process diseased elbow joints of Labrador Retrievers. It considered the articular cartilage, collateral ligaments, triceps and biceps muscle. The analysis of each joint was performed in four positions (standing position: 145 degrees and three positions of the stance phase of gait: beginning: 115 degrees, middle: 110 degrees, end: 145 degrees joint angle) in consideration of different ground reaction forces (standing: 88.3 N; stance phase of gait: 182.5 N). Results Mean values of total force of 317.5 N (standing), 590.7 N (beginning), 330.9 N (middle) and 730.9 N (end) were measured. The percentual force distribution resulted in a total of 49.56 ± 26.58% on the ulna with a very inhomogeneous distribution. A significant difference was detected between the positions ‘standing’ and ‘end’ (p = 0.0497) regardless of the joint condition. In some FEA results, visual assessment of the surface pressures indicated an increase in pressure in the region of the medial compartment without a uniform pattern. An increase in pressure resulted in an area increase in the pressure marks on the joint surface and measurable pressure was increased at a larger joint angle. Clinical Significance FEA can provide information about the transmission of force in the joint. Prior to the use of FEA in scientific clinical research for the simulation of force, further model improvements are necessary.

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Stresses in Prosthetic Elbow Joint During Flexion-Extension Movement

Tarnita,

Popa,

Boborelu

et al. 2023

Atlantis Highlights in Engineering

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The present paper aims to study the virtual behavior of a prosthetic elbow joint. The values and distribution of stresses in the prosthetic elbow joint by using FEA on the 3D virtual model during flexion-extension movement under the solicitation of a vertical external force are obtained. They are compared with those developed on the human healthy elbow joint. Solid Works software is used in order to obtain the virtual model and Visual Nastran to obtain the von Mises stress by finite element analysis. The maximum stresses values in metallic components of prosthetic elbow are about 4-5 times higher than those obtained in healthy elbow, for a flexion angle equal to 90 degrees.

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Virtual Modeling and Numerical Simulations of the Latitude Prosthesis - Human Elbow Assembly

Cited by 3 publications

References 7 publications

An Experimental and Virtual Approach to Hip Revision Prostheses

An Experimental and Virtual Approach to Hip Revision Prostheses

Performing a Three-Dimensional Finite Element Analysis to Simulate and Quantify the Contact Pressure in the Canine Elbow Joint: A Pilot Study

Stresses in Prosthetic Elbow Joint During Flexion-Extension Movement

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