面向临床应用的股骨颈骨折治疗方案优选系统实现

发布时间：2018-04-30 14:03

本文选题：股骨颈骨折 + 虚拟手术　；参考：《哈尔滨理工大学》2015年硕士论文

【摘要】：股骨颈骨折是临床上最常见的骨折之一,晚期可并发股骨头缺血性坏死及塌陷,临床上除了手术手法由医生把握外,内固定方式的选择也是完全凭借医生的经验,因而经常忽略其内固定方式力学结构的合理性。本文以股骨颈骨折不同内固定方式的选择为研究对象,通过ANSYS解算出相同载荷下,不同内固定方式的应力、应变数据结果,并根据评价准则优选内固定方式。本论文主要内容包括以下3个部分。首先借助VC++开发友好、方便的人机交互前台界面。根据ANSYS有限元分析的几个过程,将股骨颈骨折虚拟手术优选系统分为3个模块:参数化的前处理模块、有限元APDL解算模块、后处理模块。参数化的前处理模块主要完成的是患者骨折参数的输入以及内固定方式的选择;有限元APDL解算模块主要实现ANSYS的批处理运行;后处理模块主要完成的是对ANSYS批处理结果的获取并依据结果合理选择内固定方式进行股骨颈骨折的手术。其次基于参数化的设计思想,分别编写股骨颈参数化有限元模型的APDL代码、对应于不同内固定方式的参数化骨折内固定的APDL代码、参数化的网格划分及载荷约束施加的APDL代码和结果后处理的APDL代码。最后建立股骨颈骨折虚拟手术优选系统与ANSYS软件之间的通信接口以及参数化的前处理模块与对应的APDL代码之间的通信接口。前者的实现使得虚拟手术系统能够实现后台调用ANSYS软件。后者的实现使得在前处理模块中输入的参数能够与对应的APDL代码实现参数传递,保证了股骨颈骨折虚拟手术优选系统的可行性与合理性。综上所述,本论文的目的是研究出股骨颈骨折虚拟手术优选系统一套。该手术系统力求在仅有X片的前提下即可实现ANSYS批处理分析,并对结果进行优选,辅助医生优选内固定方式。从工程学的角度为临床选择股骨颈骨折内固定方式提供了理论指导。
[Abstract]:Femoral neck fracture is one of the most common fractures in clinic. The late stage can be accompanied by avascular necrosis and collapse of femoral head. Therefore, the rationality of the mechanical structure of its internal fixation mode is often ignored. Taking the choice of different internal fixation methods for femoral neck fracture as the research object, the stress and strain data of different internal fixation methods under the same load were calculated by ANSYS solution, and the optimal internal fixation method was selected according to the evaluation criteria. The main content of this thesis includes the following three parts. First of all, with the help of VC development friendly, convenient human-computer interface interface. According to several processes of ANSYS finite element analysis, the optimal system of virtual surgery for femoral neck fracture is divided into three modules: parameterized pre-processing module, finite element APDL solution module and post-processing module. The parameterized pre-processing module mainly completes the input of fracture parameters and the choice of internal fixation mode, the finite element APDL solution module mainly realizes the batch operation of ANSYS. The post-processing module mainly completes the acquisition of ANSYS batch treatment results and the rational selection of internal fixation for femoral neck fracture surgery based on the results. Secondly, based on the parameterized design idea, the APDL code of the parameterized finite element model of femoral neck is compiled, which corresponds to the APDL code of the parameterized fracture internal fixation with different internal fixation methods. Parameterized meshing and load constraints imposed on the APDL code and the result post-processing APDL code. Finally, the communication interface between the virtual surgery system and the ANSYS software and the communication interface between the parameterized preprocessing module and the corresponding APDL code are established. The implementation of the former enables the virtual surgery system to call the ANSYS software in the background. The implementation of the latter makes the parameters input in the pre-processing module can be transferred with the corresponding APDL code to ensure the feasibility and rationality of the virtual surgery optimization system for femoral neck fractures. To sum up, the purpose of this paper is to develop an optimal virtual surgery system for femoral neck fracture. The operation system strives to realize ANSYS batch analysis on the premise of X ray only, and to select the results and assist doctors to select the internal fixation mode. From the point of view of engineering, it provides theoretical guidance for clinical selection of internal fixation of femoral neck fractures.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R683.4

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