Novel 3D Printed Modular Hemipelvic Prosthesis for Successful Hemipelvic Arthroplasty： A Case Study

作     者：Xin Zhao Jianlin Xiao Yu Sun Zhe Zhu Meng Xu XiaonanWang Feifei Lin Yanbing Wang Jincheng Wang 无

作者机构：Orthopedic Department the Second Hospital of Jilin University Changchun 130041 China Orthopedic Department China-Japan Union Hospital of Jilin University Changchun 130033 China 

出 版 物：《Journal of Bionic Engineering》 (仿生工程学报（英文版）)

年 卷 期：2018年第15卷第6期

页      面：1067-1074页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 0835[工学-软件工程] 081202[工学-计算机软件与理论] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：This work was supported and funded by the National Nature Science Foundation of Youth in China (No.81601907) and an Outstanding Youth Foundation award (20170520019JH) from the Science and Technology Department of Jilin Province 

主　　题：3D printing hemipelvic prosthesis 3D reconstruction rapid prototype bionic prosthesis design 

摘      要：In this study, in order to prevent the failure of hemipelvic arthroplasty using a patient-specific Computer-Aided Design （CAD） and Additive Manufacturing （AM） approach, a new design for modular hemipelvic prosthesis was developed. Moreover, the biomechanical properties of the new design were determined. The 3D printed pelvic prosthesis with a sacrum portion that completely matches the back surface of the patient＇s sacrum offers more potential for bone ingrowth between the host bone and prosthesis. The new approach integrated the capabilities of digital medical imaging techniques, CAD and metal AM to realize a modular hemipelvic prosthesis. The patient＇s pelvic Digital Imaging and Communication in Medicine （DICOM） data were imported into Mimics software to construct a digital representative patient model for design of the prosthesis. A physical model was obtained using a Stereolithography （SLA） 3D printer for preoperative planning. The final customized implant was designed by using UG NX 10.0 software. Then a surgically modular hemipelvic prosthesis was fabricated from the Ti6Al4V titanium alloy by electron beam melting technology. The operation was performed according to the preoperative planning. The outcome of the operation was good at the 6-month follow-up. Also, the stress distribution and the relative micromotion revealed positive results based on a finite element model built to detect prosthesis stability. The 3D printed modular hemipelvic prosthesis provided good resolution for the failure of hemipelvic arthroplasty. Personal customization will be important in future surgeries aiming at improving the anatomy and function of the implant.