Finite element analysis of Kirschner wire fixation for lateral condyle fracture in children in the sagittal plane

ObjectiveThis study aims to find the optimal arrangement of the Kirschner wire (K-wire) in the sagittal plane for fixation of a pediatric lateral condylar humeral fracture (Milch type II) by using finite element analysis (FEA).MethodsA model of lateral condyle fracture in a 6-year-old boy was develo...

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Main Authors: Huanan Bai, Qingda Lu, Xiaoju Liang, Xiaoming Wang, Yating Yang, Huan Wang, Jiaju Wang, Qiang Jie
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-07-01
Series:Frontiers in Pediatrics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fped.2023.1210493/full
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author Huanan Bai
Huanan Bai
Qingda Lu
Xiaoju Liang
Xiaoming Wang
Yating Yang
Huan Wang
Jiaju Wang
Qiang Jie
author_facet Huanan Bai
Huanan Bai
Qingda Lu
Xiaoju Liang
Xiaoming Wang
Yating Yang
Huan Wang
Jiaju Wang
Qiang Jie
author_sort Huanan Bai
collection DOAJ
description ObjectiveThis study aims to find the optimal arrangement of the Kirschner wire (K-wire) in the sagittal plane for fixation of a pediatric lateral condylar humeral fracture (Milch type II) by using finite element analysis (FEA).MethodsA model of lateral condyle fracture in a 6-year-old boy was developed, and an XYZ coordinate system was established based on this model. The YZ plane was defined as the sagittal plane to investigate the impact of the angle formed by the first and second K-wires on stability. Two configurations were studied for each angle: parallel and divergent. Evaluation indicators included the maximum displacement of the fracture fragment and the maximum von Mises stress in the pins and bone.ResultsThe model with a −60° angle showed the best performance in both evaluation indicators. The parallel and divergent pin configurations had different performances in each group. The displacement results for negative angles were similar, and this result was better than those for positive angles.ConclusionWe successfully created a model of pediatric lateral condyle humerus fracture (Milch type II) and performed K-wire fixation with varying sagittal plane configurations, combined with FEA. Our findings demonstrate that the angle of −60° between the two pins in the sagittal plane provided the highest level of stability, with divergent configurations proving superior to parallel pinning at this angle.
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spelling doaj.art-2a8f79671e944ebdaa16b8c718db3ed92023-07-24T13:59:50ZengFrontiers Media S.A.Frontiers in Pediatrics2296-23602023-07-011110.3389/fped.2023.12104931210493Finite element analysis of Kirschner wire fixation for lateral condyle fracture in children in the sagittal planeHuanan Bai0Huanan Bai1Qingda Lu2Xiaoju Liang3Xiaoming Wang4Yating Yang5Huan Wang6Jiaju Wang7Qiang Jie8Pediatric Orthopaedic Hospital, Honghui Hospital, Xi’an Jiaotong University, Shaanxi, ChinaSchool of Medicine, Medical College of Yan'an University, Yan'an, ChinaPediatric Orthopaedic Hospital, Honghui Hospital, Xi’an Jiaotong University, Shaanxi, ChinaPediatric Orthopaedic Hospital, Honghui Hospital, Xi’an Jiaotong University, Shaanxi, ChinaPediatric Orthopaedic Hospital, Honghui Hospital, Xi’an Jiaotong University, Shaanxi, ChinaPediatric Orthopaedic Hospital, Honghui Hospital, Xi’an Jiaotong University, Shaanxi, ChinaPediatric Orthopaedic Hospital, Honghui Hospital, Xi’an Jiaotong University, Shaanxi, ChinaPediatric Orthopaedic Hospital, Honghui Hospital, Xi’an Jiaotong University, Shaanxi, ChinaPediatric Orthopaedic Hospital, Honghui Hospital, Xi’an Jiaotong University, Shaanxi, ChinaObjectiveThis study aims to find the optimal arrangement of the Kirschner wire (K-wire) in the sagittal plane for fixation of a pediatric lateral condylar humeral fracture (Milch type II) by using finite element analysis (FEA).MethodsA model of lateral condyle fracture in a 6-year-old boy was developed, and an XYZ coordinate system was established based on this model. The YZ plane was defined as the sagittal plane to investigate the impact of the angle formed by the first and second K-wires on stability. Two configurations were studied for each angle: parallel and divergent. Evaluation indicators included the maximum displacement of the fracture fragment and the maximum von Mises stress in the pins and bone.ResultsThe model with a −60° angle showed the best performance in both evaluation indicators. The parallel and divergent pin configurations had different performances in each group. The displacement results for negative angles were similar, and this result was better than those for positive angles.ConclusionWe successfully created a model of pediatric lateral condyle humerus fracture (Milch type II) and performed K-wire fixation with varying sagittal plane configurations, combined with FEA. Our findings demonstrate that the angle of −60° between the two pins in the sagittal plane provided the highest level of stability, with divergent configurations proving superior to parallel pinning at this angle.https://www.frontiersin.org/articles/10.3389/fped.2023.1210493/fulllateral condyle fracturefinite element analysisKirschner wiresagittal planechildren
spellingShingle Huanan Bai
Huanan Bai
Qingda Lu
Xiaoju Liang
Xiaoming Wang
Yating Yang
Huan Wang
Jiaju Wang
Qiang Jie
Finite element analysis of Kirschner wire fixation for lateral condyle fracture in children in the sagittal plane
Frontiers in Pediatrics
lateral condyle fracture
finite element analysis
Kirschner wire
sagittal plane
children
title Finite element analysis of Kirschner wire fixation for lateral condyle fracture in children in the sagittal plane
title_full Finite element analysis of Kirschner wire fixation for lateral condyle fracture in children in the sagittal plane
title_fullStr Finite element analysis of Kirschner wire fixation for lateral condyle fracture in children in the sagittal plane
title_full_unstemmed Finite element analysis of Kirschner wire fixation for lateral condyle fracture in children in the sagittal plane
title_short Finite element analysis of Kirschner wire fixation for lateral condyle fracture in children in the sagittal plane
title_sort finite element analysis of kirschner wire fixation for lateral condyle fracture in children in the sagittal plane
topic lateral condyle fracture
finite element analysis
Kirschner wire
sagittal plane
children
url https://www.frontiersin.org/articles/10.3389/fped.2023.1210493/full
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