The Science Behind the Springs: Using Biomechanics and Finite Element Modeling to Predict Outcomes in Spring-Assisted Sagittal Synostosis Surgery
The Science Behind the Springs: Using Biomechanics and Finite Element Modeling to Predict Outcomes in Spring-Assisted Sagittal Synostosis Surgery
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DOI：
10.1097/scs.0000000000006865
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发表时间：
2020-10-01
影响因子：
0.9
通讯作者：
Schievano, Silvia
中科院分区：
文献类型：
--
作者：
Jeelani, Noor ul Owase;Borghi, Alessandro;Schievano, Silvia
在过去的二十年里，矫正舟头畸形的弹簧辅助手术越来越受欢迎。我们的单位采用标准的扭转弹簧与中心螺旋弹簧辅助手术。这种设计使力矢量和力距离曲线具有高度的准确性和可重复性。在这篇文章中，我们对这些弹簧的生物力学测试和性能进行了扩展。标准化的设计使我们能够在实验台上和体内研究弹簧，并获得和分析了一个全面的颅骨重塑和弹簧动力学知识库。有限元模型是一种用于预测弹簧辅助手术结果的技术。我们发现这是一个有用的工具，在计划我们的手术策略和改善结果。这项技术也为术前知情同意的过程做出了重大贡献。在本文中，我们将扩展我们的弹簧设计和动力学以及用于预测和改进结果的有限元建模。在我们的单位，这种做法显著改善了患者的治疗效果和家长的满意度，我们希望将我们的技术推广给更广泛的受众。
Spring-assisted surgery for the correction of scaphocephaly has gained popularity over the past 2 decades. Our unit utilizes standardized torsional springs with a central helix for spring-assisted surgery. This design allows a high degree of accuracy and reproducibility of the force vectors and force distance curves. In this manuscript, we expand on the biomechanical testing and properties of these springs. Standardization of design has enabled us to study the springs on bench and in vivo and a comprehensive repository of calvarial remodeling and spring dynamics has been acquired and analyzed. Finite element modeling is a technique utilized to predict the outcomes of spring-assisted surgery. We have found this to be a useful tool, in planning our surgical strategy and improving outcomes. This technique has also contributed significantly to the process of informed consent preoperatively. In this article, we expand on our spring design and dynamics as well as the finite element modeling used to predict and improve outcomes. In our unit, this practice has led to a significant improvement in patient outcomes and parental satisfaction and we hope to make our techniques available to a wider audience.