Design,fabrication,and structural safety validation of 3D-printable biporous bone augments

作     者：Yeokyung Kang Dasol Lim Doo-Hoon Sun Jong-Chul Park Jungsung Kim Yeokyung Kang;Dasol Lim;Doo-Hoon Sun;Jong-Chul Park;Jungsung Kim

作者机构：Central Research&Development CenterCorentec Company Ltd.33-2Banpo-daero 20-gilSeocho-guSeoulRepublic of Korea Cellbiocontrol LaboratoryDepartment of Medical EngineeringYonsei University College of Medicine50-1 Yonsei-roSinchon-dongSeodaemun-guSeoulRepublic of Korea Department of Orthopaedic SurgeryDaejeon Sun Hospital10-7 Mok-dongJung-guDaejeonRepublic of Korea 

出 版 物：《Bio-Design and Manufacturing》 (生物设计与制造（英文）)

年 卷 期：2023年第6卷第1期

页      面：26-37页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 0710[理学-生物学] 1002[医学-临床医学] 0817[工学-化学工程与技术] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0836[工学-生物工程] 0811[工学-控制科学与工程] 10[医学] 

基　　金：supported by the Technology Development Program(P0011350)funded by the Ministry of SMEs and Startups(MSS Korea) 

主　　题：Bone augment 3D printing Biporous structure Total hip arthroplasty Metal implant 

摘      要：The use of commercial products such as a cup and liner for total hip arthroplasty for patients with severe bone defects has a high probability of *** these patients the cup alone cannot cover the bone defect,and thus,an additional augment or cage is *** this study,we designed three-dimensional(3D)printable bone augments as an alternative to surgeries using reinforcement ***-five sharp-edged bone augments of various sizes were 3D printed.A biporous structure was designed to reduce the weight of the augment and to facilitate bone *** types of frames were used to prevent damage to the augment’s porous structure and maintain its stability during ***,two types of holes were provided for easy augment fixation at various *** tests were performed on a combination of worst-case sizes derived using finite element *** test results confirmed the structural stability of the specimens at a load of 5340 *** the porosity of the specimens was measured to be 63.70%,it cannot be said that the porous nature was uniformly distributed because porosity tests were performed locally and *** summary,3D-printable biporous bone augments capable of bonding from various angles and bidirectionally through angulation and bottom-plane screw holes are *** mechanical results with bone augments indicate good structural safety in ***,further research is necessary to study the clinical applications of the proposed bone augment.