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 

机构地区：[1]Department of Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti di Anca e Ginocchio,IRCCS Istituto Ortopedico Rizzoli,Bologna 40136,Italy [2]Department of Clinica I di Ortopedia e Traumatologia,Rizzoli Orthopedic Institute,University of Bologna,Bologna 40136,Italy [3]Department of DIBINEM Scienze Biomediche e Neuromotorie,Alma Mater Studiorum Universitàdi Bologna,Bologna 40139,Italy

出　　处：《World Journal of Orthopedics》2021年第6期376-385,共10页世界骨科杂志（英文版）

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 surface.The aim was to improve local vascularization and bony ingrowth,and at the same time to reduce periprosthetic stress shielding.Additive 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 techniques.To date,3D-printed cups have achieved dependable clinical and radiological outcomes with results not inferior to conventional sockets and with good rates of osseointegration.No mechanical failures and no abnormal ion release and biocompatibility warnings have been reported.In 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.

关 键 词：SOCKET Highly porous Additive manufacturing Ultraporous TRABECULAR Beam melting 

分 类 号：R687.4[医药卫生—骨科学] R318[医药卫生—外科学]