Evaluation of full pelvic ring stresses using a bilateral static gait-phase finite element modeling method

Volinski, Bridget; Kalra, Anil; Yang, King H.

doi:10.1016/j.jmbbm.2017.11.006

Cited by 14 publications

(23 citation statements)

References 62 publications

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“…All isotropic settings were ideal. Thus, there is difference between the results and the actual physiological state; therefore, the experimental results will be somewhat different from actual clinical conditions [41,42]. To reduce this difference, a normal pelvic model was established.…”

Section: Limitations and Further Studiesmentioning

confidence: 99%

Biomechanics of Anterior Ring Internal Fixation Combined with Sacroiliac Screw Fixation for Tile C3 Pelvic Fractures

et al. 2020

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Departmental sources Background:Despite the development of minimally invasive techniques for pelvic fractures, performing minimally invasive surgery for Tile C3 pelvic fractures remains challenging. Thus, we propose use of anterior ring internal fixation combined with sacroiliac screw fixation for Tile C3 pelvic fractures. Material/Methods:A normal pelvic finite element model (model 1) was established. Two-screw, three-screw, and four-screw anterior ring internal fixators and plate combined with sacroiliac screw Tile C3 pelvic fracture models (models 2, 3, 4, and 5, respectively) were also established. A vertical load of 600 N was applied on S1. The distribution of displacement and stress in the standing and sitting positions was compared. Results:Models 2, 3, 4, and 5 can provide effective fixation. Compared with model 1, in the erect position, the maximum displacement of models 2, 3, 4, and 5 increased by 66.51%, 65.36%, 35.16%, and 35.47% and the maximum stress increased by 201.78%, 130.65%, 100.82%, and 99.03%, respectively. Compared with model 1, in sitting position, the maximum displacement of models 2, 3, 4, and 5 increased by 9.1%, 11.04%, 5.57%, and 8.59% and the maximum stress increased by 157.73%, 118.02%, 98.32%, and 93.16%, respectively. Conclusions:Anterior ring internal fixators combined with sacroiliac screws can effectively fix Tile C3 pelvic fractures.

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Section: Limitations and Further Studiesmentioning

confidence: 99%

Biomechanics of Anterior Ring Internal Fixation Combined with Sacroiliac Screw Fixation for Tile C3 Pelvic Fractures

et al. 2020

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“…Primary objectives in the field of (basic science) biomechanical research of the human pelvis were primarily to refine models, resulting in realistic load deformations (Anderson et al, 2004;Ma et al, 2015;Volinski et al, 2018) or to compare the effects of boundary conditions on pelvic motion (Hu et al, 2017;Phillips et al, 2007a;Shi et al, 2014;Watson et al, 2017). Further research in the field addressed the influence of the altered ligament strain in relation to pelvic motion (Buford et al, 2010;Eichenseer et al, 2011;Hammer et al, 2013;Hao et al, 2011), or the reciprocal influence of the SIJ-hip joint complex.…”

Section: Scope Of Fe Analyses Focusing On Biomechanicsmentioning

confidence: 99%

In-silico pelvis and sacroiliac joint motion—A review on published research using numerical analyses

Hammer

Klima

2019

Clinical Biomechanics

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“…Additionally, some studies on the biomechanism of pelvic injury have been close to forensic practices. Bridget et al [43] found that the force on the hip joint directly affects the distribution of pelvic stress, and gait will significantly affect the pelvic stress concentration.…”

Section: Discussionmentioning

confidence: 99%

Effects of Loading Conditions on the Pelvic Fracture Biomechanism and Discrimination of Forensic Injury Manners of Impact and Run-Over Using the Finite Element Pelvic Model

Zou

Zhang

et al. 2022

Applied Sciences

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This study aimed to systematically simulate the responses of pelvic fracture under impact and run-over to clarify the effects of boundary and loading conditions on the pelvic fracture mechanism and provide complementary quantitative evidence for forensic practice. Based on the THUMS finite element model, we have validated the simulation performance of the model by a real postmortem human pelvis side impact experiment. A total of 54 simulations with two injury manners (impact and run-over), seven loading directions (0°, 30°, 60°, 90°, 270°, 300°, 330°), and six loading velocities (10, 20, 30, 40, 50, and 60 km/h) were conducted. Criteria of effective strain, Von-Mises stress, contact force, and self-designed normalized eccentricity were used to evaluate the biomechanism of pelvic fracture. Based on our simulation results, it’s challenging to distinguish impact from run-over only rely on certain characteristic fractures. Loads on the front and back were less likely to cause pelvic fractures. In the 30°, 60°, 300° load directions, the overall deformation caused a “diagonal” pelvic fracture. The higher is the velocity (kinetic energy), the more severe is the pelvic fracture. The contact force will predict the risk of fracture. In addition, our self-designed eccentricity will distinguish the injury manner of impact and run-over under the 90° loads. The “biomechanical fingerprints” based on logistic regression of all biomechanical variables have an AUC of 0.941 in discriminating the injury manners. Our study may provide simulation evidence and new methods for the forensic community to improve the forensic identification ability of injury manners.

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Evaluation of full pelvic ring stresses using a bilateral static gait-phase finite element modeling method

Cited by 14 publications

References 62 publications

Biomechanics of Anterior Ring Internal Fixation Combined with Sacroiliac Screw Fixation for Tile C3 Pelvic Fractures

Biomechanics of Anterior Ring Internal Fixation Combined with Sacroiliac Screw Fixation for Tile C3 Pelvic Fractures

In-silico pelvis and sacroiliac joint motion—A review on published research using numerical analyses

Effects of Loading Conditions on the Pelvic Fracture Biomechanism and Discrimination of Forensic Injury Manners of Impact and Run-Over Using the Finite Element Pelvic Model

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