Off-the-shelf 3D printed titanium cups in primary total hip arthroplasty

作     者：Francesco Castagnini Filippo Caternicchia Federico Biondi Claudio Masetti Cesare Faldini Francesco Traina 

作者机构：Department of Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti di Anca e GinocchioIRCCS Istituto Ortopedico RizzoliBologna 40136Italy Department of Clinica I di Ortopedia e TraumatologiaRizzoli Orthopedic InstituteUniversity of BolognaBologna 40136Italy Department of DIBINEM Scienze Biomediche e NeuromotorieAlma Mater Studiorum Universitàdi BolognaBologna 40139Italy 

出 版 物：《World Journal of Orthopedics》 (世界骨科杂志（英文版）)

年 卷 期：2021年第12卷第6期

页      面：376-385页

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 1002[医学-临床医学] 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)] 08[工学] 0836[工学-生物工程] 10[医学] 

主　　题：Socket Highly porous Additive manufacturing Ultraporous Trabecular Beam melting 

摘      要：Three-dimensional(3D)-printed titanium cups used in primary total hip arthroplasty(THA)were developed to combine the benefits of a low elastic modulus with a highly porous *** aim was to improve local vascularization and bony ingrowth,and at the same time to reduce periprosthetic stress *** manufacturing,starting with a titanium alloy powder,allows serial production of devices with large interconnected pores(trabecular titanium),overcoming the drawbacks of tantalum and conventional manufacturing *** date,3D-printed cups have achieved dependable clinical and radiological outcomes with results not inferior to conventional sockets and with good rates of *** mechanical failures and no abnormal ion release and biocompatibility warnings have been *** this review,we focused on the manufacturing technique,cup features,clinical outcomes,open questions and future developments of off-the-shelf 3D-printed titanium shells in THA.