关键词: Finite element analysis Microplate Miniplate Zygomaticomaxillary complex

来  源:   DOI:10.1007/s12663-023-02109-w   PDF(Pubmed)

Abstract:
UNASSIGNED: To compare the biomechanical parameters of microplates and the combined miniplate-microplate for fixing zygomaticomaxillary complex (ZMC) fractures using nonlinear finite element analysis (FEA).
UNASSIGNED: Two samples of ZMC fracture models were prepared. In sample 1 (S1), the fractures were stabilized with microplates, and in sample 2 (S2), with miniplates plus microplates. FEA software was used to measure the displacement, Von Mises stress distribution (VMSD), and maximum principal stress distribution (MPSD).
UNASSIGNED: The displacement was 6.7 μm in the L-shaped plate of both samples, 4.4 μm in the S1 lateral-edge plate, 4.8 μm in the S2 lateral-edge plate, 5.8 μm in the S1 bottom-edge plate, and 5.6 μm in the S2 bottom-edge plate. The VMSD was 41.1 MPa in the S1 lateral-edge plate, 24.3 MPa in the S2 lateral-edge plate, 7.6 MPa in the S1 Lshaped plate, 9.6 MPa in S2 L-shaped plate, 28.5 MPa in the S1 bottom-edge plate, and 11.8 MPa in the S2 bottom-edge plate. The MPSD was 46.2 MPa in the S1 lateral-edge plate, 26.4 MPa in the S2 lateral-edge plate, 3.6 MPa in S1 L-shaped plate, 4.2 MPa in S2 L-shaped plate, 30.9 MPa in S1 bottom-edge plate, and 14.1 MPa in the S2 bottom-edge plate.
UNASSIGNED: The L-shaped and lateral-edge plates in both samples had the highest and lowest amount of displacement, respectively. The lateral-edge plates in both samples had the highest VMSD and MPSD, which was higher in S1 than S2. The L-shaped plate had the lowest VMSD and MPSD in both samples.
摘要:
使用非线性有限元分析(FEA)比较微型板和组合微型板-微型板的生物力学参数,以固定zygomaticomax2004复合体(ZMC)骨折。
制备ZMC断裂模型的两个样品。在样本1(S1)中,骨折用微型钢板稳定,在样本2(S2)中,用微型平板加上微型平板。采用有限元分析软件测量位移,VonMises应力分布(VMSD),和最大主应力分布(MPSD)。
两个样品的L形板的位移均为6.7μm,S1侧边缘板中的4.4μm,S2侧边缘板中的4.8μm,S1底缘板中的5.8μm,在S2底部边缘板中和5.6μm。S1侧边缘板中的VMSD为41.1MPa,S2侧缘板24.3MPa,S1L型板中的7.6MPa,在S2L形板中9.6MPa,S1底部边缘板中的28.5MPa,和11.8MPa在S2底部边缘板。S1侧边缘板的MPSD为46.2MPa,S2侧边缘板中的26.4MPa,S1L型板中3.6MPa,在S2L形板中4.2MPa,S1底边板30.9MPa,和14.1MPa在S2底部边缘板。
两个样品中的L形和横向边缘板的位移量最高和最低,分别。两个样品中的侧边缘板具有最高的VMSD和MPSD,S1高于S2。L形板在两个样品中具有最低的VMSD和MPSD。
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