Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission

Abstract Background The objective of the study is to investigate the load transmission within the pelvic ring under physiological loading during gait and to correlate these results with clinical findings. In a second approach, we analysed how load distribution is altered by fractures of the anterior...

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Main Authors: Pierre-Louis Ricci, Stefan Maas, Jens Kelm, Torsten Gerich
Format: Article
Language:English
Published: SpringerOpen 2018-09-01
Series:Journal of Experimental Orthopaedics
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40634-018-0151-7
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author Pierre-Louis Ricci
Stefan Maas
Jens Kelm
Torsten Gerich
author_facet Pierre-Louis Ricci
Stefan Maas
Jens Kelm
Torsten Gerich
author_sort Pierre-Louis Ricci
collection DOAJ
description Abstract Background The objective of the study is to investigate the load transmission within the pelvic ring under physiological loading during gait and to correlate these results with clinical findings. In a second approach, we analysed how load distribution is altered by fractures of the anterior pelvic ring. Methods Muscle forces and joint reaction forces are calculated by inverse dynamics and implemented in a finite element pelvis model including the joints. Results With the intact configuration and according to the moment of the gait, left and right superior and inferior rami show the highest stresses of the model, corresponding to the typical location of an anterior pelvic ring fracture. A superior ramus fracture induces larger stresses to the lower ramus and a slight increase of stresses on the posterior structures. A total disruption of anterior rami redirects the loads to the back of the pelvis and introduces significantly higher stresses on the posterior structures. Conclusions This investigation enhances the understanding of the biomechanics of the pelvis and highlights the important role of the rami in load carrying and in maintaining integrity of the pelvic ring.
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spelling doaj.art-cb0850313dcd4b8e978f3aa745dcacb02024-02-02T23:15:36ZengSpringerOpenJournal of Experimental Orthopaedics2197-11532018-09-01511910.1186/s40634-018-0151-7Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmissionPierre-Louis Ricci0Stefan Maas1Jens Kelm2Torsten Gerich3Research Unit in Engineering Sciences, Campus Kirchberg, Université du LuxembourgResearch Unit in Engineering Sciences, Campus Kirchberg, Université du LuxembourgChirurgisch-Orthopädisches ZentrumCentre Hospitalier de Luxembourg, Service de TraumatologieAbstract Background The objective of the study is to investigate the load transmission within the pelvic ring under physiological loading during gait and to correlate these results with clinical findings. In a second approach, we analysed how load distribution is altered by fractures of the anterior pelvic ring. Methods Muscle forces and joint reaction forces are calculated by inverse dynamics and implemented in a finite element pelvis model including the joints. Results With the intact configuration and according to the moment of the gait, left and right superior and inferior rami show the highest stresses of the model, corresponding to the typical location of an anterior pelvic ring fracture. A superior ramus fracture induces larger stresses to the lower ramus and a slight increase of stresses on the posterior structures. A total disruption of anterior rami redirects the loads to the back of the pelvis and introduces significantly higher stresses on the posterior structures. Conclusions This investigation enhances the understanding of the biomechanics of the pelvis and highlights the important role of the rami in load carrying and in maintaining integrity of the pelvic ring.http://link.springer.com/article/10.1186/s40634-018-0151-7Pelvic ring fractureBiomechanics of the pelvisPhysiological loadings of the gaitMuscle forcesFinite element analysis
spellingShingle Pierre-Louis Ricci
Stefan Maas
Jens Kelm
Torsten Gerich
Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission
Journal of Experimental Orthopaedics
Pelvic ring fracture
Biomechanics of the pelvis
Physiological loadings of the gait
Muscle forces
Finite element analysis
title Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission
title_full Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission
title_fullStr Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission
title_full_unstemmed Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission
title_short Finite element analysis of the pelvis including gait muscle forces: an investigation into the effect of rami fractures on load transmission
title_sort finite element analysis of the pelvis including gait muscle forces an investigation into the effect of rami fractures on load transmission
topic Pelvic ring fracture
Biomechanics of the pelvis
Physiological loadings of the gait
Muscle forces
Finite element analysis
url http://link.springer.com/article/10.1186/s40634-018-0151-7
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AT jenskelm finiteelementanalysisofthepelvisincludinggaitmuscleforcesaninvestigationintotheeffectoframifracturesonloadtransmission
AT torstengerich finiteelementanalysisofthepelvisincludinggaitmuscleforcesaninvestigationintotheeffectoframifracturesonloadtransmission