Biomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysis

Abstract The extra-articular distal humerus plate (EADHP) has been widely used for surgical treatment of distal humerus shaft fracture (DHSF). However, the surgical approach, fixation methods, and implant positions of the EADHP remain controversial owing to iatrogenic radial nerve injury and complai...

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Main Authors: Jung-Soo Lee, Kwang Gi Kim, Yong-Cheol Yoon
Format: Article
Language:English
Published: Nature Portfolio 2023-09-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-43183-x
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author Jung-Soo Lee
Kwang Gi Kim
Yong-Cheol Yoon
author_facet Jung-Soo Lee
Kwang Gi Kim
Yong-Cheol Yoon
author_sort Jung-Soo Lee
collection DOAJ
description Abstract The extra-articular distal humerus plate (EADHP) has been widely used for surgical treatment of distal humerus shaft fracture (DHSF). However, the surgical approach, fixation methods, and implant positions of the EADHP remain controversial owing to iatrogenic radial nerve injury and complaints such as skin irritation related to the plate. Anterior plating with a modified (upside-down application) proximal humerus locking plate (PHILOS) has been proposed as an alternative, However, research on its biomechanical performance remain insufficient and were mostly based on retrospective studies. This study quantitatively compared and evaluated the biomechanical performance between posterior plating with the EADHP and anterior plating with a modified PHILOS using finite element analysis (FEA). The FEA simulation results that both the EADHP and PHILOS had adequate biomechanical performance and stability under axial, bending, and varus force load conditions. The PHILOS has a fixed stability comparable to that of the EADHP, and fixation was achieved using only four locking screws within a fixed range of 30 mm just above the olecranon fossa. The results show that the PHILOS could be an option for the fixation of a DHSF when considering the dissection range and complaints (e.g. skin irritation) associated with the EADHP.
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spelling doaj.art-3631fbfbe2b148c88a276c84bc4344c72023-11-26T13:14:34ZengNature PortfolioScientific Reports2045-23222023-09-011311910.1038/s41598-023-43183-xBiomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysisJung-Soo Lee0Kwang Gi Kim1Yong-Cheol Yoon2Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon UniversityDepartment of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon UniversityOrthopedic Trauma Division, Trauma Center, Gachon University Gil Medical CenterAbstract The extra-articular distal humerus plate (EADHP) has been widely used for surgical treatment of distal humerus shaft fracture (DHSF). However, the surgical approach, fixation methods, and implant positions of the EADHP remain controversial owing to iatrogenic radial nerve injury and complaints such as skin irritation related to the plate. Anterior plating with a modified (upside-down application) proximal humerus locking plate (PHILOS) has been proposed as an alternative, However, research on its biomechanical performance remain insufficient and were mostly based on retrospective studies. This study quantitatively compared and evaluated the biomechanical performance between posterior plating with the EADHP and anterior plating with a modified PHILOS using finite element analysis (FEA). The FEA simulation results that both the EADHP and PHILOS had adequate biomechanical performance and stability under axial, bending, and varus force load conditions. The PHILOS has a fixed stability comparable to that of the EADHP, and fixation was achieved using only four locking screws within a fixed range of 30 mm just above the olecranon fossa. The results show that the PHILOS could be an option for the fixation of a DHSF when considering the dissection range and complaints (e.g. skin irritation) associated with the EADHP.https://doi.org/10.1038/s41598-023-43183-x
spellingShingle Jung-Soo Lee
Kwang Gi Kim
Yong-Cheol Yoon
Biomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysis
Scientific Reports
title Biomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysis
title_full Biomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysis
title_fullStr Biomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysis
title_full_unstemmed Biomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysis
title_short Biomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysis
title_sort biomechanical performance evaluation of a modified proximal humerus locking plate for distal humerus shaft fracture using finite element analysis
url https://doi.org/10.1038/s41598-023-43183-x
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AT yongcheolyoon biomechanicalperformanceevaluationofamodifiedproximalhumeruslockingplatefordistalhumerusshaftfractureusingfiniteelementanalysis