Comparisonofthreetypesofinternalfixationforunstablepelvicfractures : afiniteelementanalysis

doi:10.3969/j.issn.10073205.2016.02.004

Abstract

Abstract: ] Objective Tobuildanormalpelvicfiniteelementmodelandtocomparethe
stabilityofunstablepelvicfracturesfixedwiththreekindsofinternalfixatorbythree-dimensional
finiteelementanalysis.Methods A normaladultmalewaschosenrandomlyandscannedby
computerizedtomography ( 1mmslicethickness ) .Theresultswereconservedindigitalimaging
andcommunicationsinmedicineformat.Thefiniteelementmodelwasmadeusingthesoftwareof
Mimics , GeomagicStudio , SolidWorks , Abaqus.Thefiniteelementmodelofunstablepelvic
fracturewassetup , andthefractureofposteriorpelvicringwasfixedwiththreekindsofinternal
fixatorseparately.Aloadingof500Nwasputandthebilateralacetabulumwasconstrained.The
strain , displacementandstressnephogramsofthepelvicmodelandtheshiftoffracturegapwere
obtained.Results Under500 N verticalload , thestresspassedthroughsacrum , bilateral sacroiliacjointandthearcuatelinetothebilateralacetabulum.Under500Nverticalload , the
strainconcentratedofthe modelwasverysmall.Thedisplacementsofpelvic model were
iliosacral ( IS ) model ( 1.86mm ), minimallyinvasiveadjustableplate ( MIAP ) model ( 6. 89mm ),
tensionbandplate ( TBP ) model ( 9.10 mm ) .TheshiftoffracturegapinpelvicmodelwasIS
model ( 1.75mm ), MIAPmodel ( 3.00mm ), TBPmodel ( 8.03mm ) .Conclusion Thepelvisisa
steadystructure.Underverticalload , thestabilityoftheunstablepelvicfracturesfixedwith
MIAPislessthanthatfixedwithtwoISscrews , andbetterthanthatfixedwithTBP.

Key words: pelvis , fractures , internalfixators , finiteelementanalysis

CUIYun-wei,WUTao,LISheng,CHEN Wei,XINGXin,ZHANGYing-ze*. Comparisonofthreetypesofinternalfixationforunstablepelvicfractures : afiniteelementanalysis[J]. Journal of Hebei Medical University, doi: 10.3969/j.issn.10073205.2016.02.004.

[1]	WU Chao-han, QIN Ying-da, WANG Xin-hui, ZHANG Tao. Clinical study of modified minimally invasive anteromedial approach with hollow compression screw for medial malleolar fracture [J]. Journal of Hebei Medical University, 2023, 44(6): 675-680.
[2]	ZHANG Lin, CHEN Xiao-gang, JI Mu-fan, DING Jing, LIU Qing-bai. Prediction of preoperative vertebral compression degree combined with bone mineral density in re-loss of vertebral body height after pedicle screw internal fixation for thoracolumbar fractures [J]. Journal of Hebei Medical University, 2023, 44(3): 274-278.
[3]	GENG Xin, YAO Li-Jun, WEI Li-You, LI Chun-jiang, WU Chun-yun, ZHANG Yan. The relationship between sCD14, Ang2, CRP and the prognosis of emergency traumatic fracture patients with multiple injuries [J]. Journal of Hebei Medical University, 2023, 44(3): 290-294,318.
[4]	MO Huan-peng, HU Dong-hui, DENG Miao-fang, ZHANG Ya-zhong, HE Hui. Effect of percutaneous cross Kirschner wire internal fixation on children with Gartland type Ⅲ humeral supracondylar fracture [J]. Journal of Hebei Medical University, 2023, 44(2): 184-188,235.
[5]	LI Ran, YANG Zhong-ping, LI Li, WANG Wen-qiang, KANG Rui-xue, HU Ruo-mei. Evaluation of the effect of modified NRS2002 in nutritional risk screening in patients with acute traumatic fractures [J]. Journal of Hebei Medical University, 2023, 44(12): 1420-1426.
[6]	WANG Chun-xiao, LI Zhi-hua, XU Guan-jie, ZHANG Xiu-ning, QIE Xiao-juan, HAO Li-jing. Safety research of low-dose hypobaric bupivacaine for spinal anesthesia for hip surgery in elderly patients [J]. Journal of Hebei Medical University, 2022, 43(9): 1079-1084.
[7]	WANG Qiang, GAO Shu-jun, ZHAO Peng-fei, LIU Yan. Effects of down-regulation of miR-206 on fracture healing of rat rib fracture model via PI3K/Akt signaling pathway [J]. Journal of Hebei Medical University, 2022, 43(6): 627-631.
[8]	WANG Xu, HU Jin-long, ZHANG Liang, SUN Hao, HU Jun, WANG Ye. Construction of a prediction model of postoperative mortality risk for elderly patients with hip fractures based on CRP/Hb TLC, and Na+ [J]. Journal of Hebei Medical University, 2022, 43(5): 544-549.
[9]	YAN Tian-yuan, ZHANG Guo-hui, LI Hua. Effects of arthroscopic-assisted closed reduction and percutaneous internal fixation on AOFAS score, bone metabolic markers and trauma response after ankle fracture surgery [J]. Journal of Hebei Medical University, 2022, 43(5): 550-555.
[10]	LIU Ya-jun, ZHANG Ming-zhe, WANG Guo-rui, LIU Wen-ping, LV Rui-zhao, JING Yu-mo. The effect of angular pocket injection technique on diaphragmatic paralysis after supraclavicular brachial plexus obstruction [J]. Journal of Hebei Medical University, 2022, 43(4): 470-475.
[11]	ZHANG Jian-gang, NI Kun. Predictive factors of death within 2 years after following lower extremity fracture surgery in elderly patients [J]. Journal of Hebei Medical University, 2022, 43(2): 155-159,182.
[12]	HU Yi-ping, LIU Xiao-hui, CAI Fu-jin, TANG Ke, JIANG Jia-yao. Effects of different surgical methods on hip joint range of motion, immune inflammatory response and coagulation-fibrinolysis system in patients with displaced femoral neck fracture [J]. Journal of Hebei Medical University, 2021, 42(9): 1046-1051.
[13]	HAN Xiao-hui, ZHANG Xi, REN Xin-xin, GUO Jia-liang, HAN Yong-tai. Anteromedial cortical support for intertrochanteric femurfractures affects the functional prognosis of elderly patients [J]. Journal of Hebei Medical University, 2021, 42(9): 1052-1056.
[14]	WANG Kai, LI Ning, GUO Jia-liang, SONG Zhao-hui. The effect of pattern of cortical support on functional prognosis in patients with proximal humeral fractures [J]. Journal of Hebei Medical University, 2021, 42(7): 803-806，831.
[15]	BAI Lei-peng, LYU Jia-xing, WANG Yu, KONG Qing-zhu, JIN Yu, ZHAO Jing-xin. Therapeutic effect of percutaneous needle puncture combined with external fixator in older children undergoing minimally invasive treatment of proximal humeral fractures [J]. Journal of Hebei Medical University, 2021, 42(4): 420-424.

Comparisonofthreetypesofinternalfixationforunstablepelvicfractures : afiniteelementanalysis

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments