Improvement of Mechanical Performance and Biocompatibility of Spinal Implant Rod Made of Beta-Type Ti-Nb-Ta-Zr Alloy

Mitsuo Niinomi; Kengo Narita; Masaaki Nakai; Toshikazu Akahori; Harumi Tsutsumi; Kazuya Oribe

doi:10.4028/www.scientific.net/MSF.654-656.2142

Paper Titles

Effect of Nitrogen Addition on Mechanical Property of Ti-Cr-Sn Alloy
p.2126

Biomedical Titanium Alloy with Ultralow Elastic Modulus and High Strength
p.2130

Effect of Oxygen Addition on Isothermal Omega Phase Stability in Ti-29Nb-13Ta-4.6Zr
p.2134

Effect of Y₂O₃ on Mechanical Properties of Ti-29Nb-13Ta-4.6Zr for Biomedical Applications
p.2138

Improvement of Mechanical Performance and Biocompatibility of Spinal Implant Rod Made of Beta-Type Ti-Nb-Ta-Zr Alloy
p.2142

Microstructure Characterization of Laser Welded Near-β Titanium Alloy ‘TLM’ under Different Process Conditions
p.2146

Effect of Aging on Mechanical Properties of Ti-Mo-Al Biomedical Shape Memory Alloy
p.2150

Self-Accommodation Morphology in Ti-Nb-Al Shape Memory Alloy
p.2154

Fabrication of Ti-Based Biodegradable Material Composites Prepared by Spark Plasma Sintering Method
p.2158

HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Improvement of Mechanical Performance and...

Improvement of Mechanical Performance and Biocompatibility of Spinal Implant Rod Made of Beta-Type Ti-Nb-Ta-Zr Alloy

Abstract:

Mechanical properties of beta-type biomedical Ti-29Nb-13Ta-4.6Zr (mass %) (TNTZ), which exhibits non-toxicity and a low modulus similar to that of cortical bone, is improved by thermomechanical treatments, including severe cold swaging. Simultaneously, the biocompatibility of a TNTZ spinal implant rod with living tissue is evaluated using ovines, and TNTZ is proved to show good biocompatibility with bovine tissue.