继发性唇裂畸形上唇瓣三维有限元模型的建立及力学分析

Establishment of a ThreeDimensional Finite Element Model and Mechanical Analysis of the Upper Lip Flap With Secondary Cleft Lip Deformity  

Authors: Hao Liang, Haidong Li  

摘要：

本研究基于患者特异性扫描数据建立上唇瓣修复的三维有限元模型，模拟不同切口尺寸（3.5–8 mm）下的力学响应。3.5毫米切口可实现最小位移（0.27 mm）和应力（4.6 MPa），降低术后不对称风险。该模型为唇裂手术方案的量化优化提供了工具。

Abstract:

Cleft lip secondary deformity is a common oral and maxillofacial deformity, usually accompanied by the upper lip and nasal cleft. The main treatment method for cleft lip secondary deformity is surgical repair. Among them, upper lip flap repair is a common method; the principle is to transplant the healthy tissue to the lesion site to achieve the purpose of repair. However, during the surgical process, each key point’s stress distribution and strain conditions are quite different. Therefore, special attention should be paid to the mechanical properties of each key point during the repair operation to ensure the surgical effect. This paper aims to establish a 3dimensional finite element model and perform finite element analysis to simulate the mechanical properties and key point displacement of the upper lip flap repair operation for cleft lip secondary deformity to improve the operation’s success rate and safety.