Development of Porous Coated Type Artificial Hip Joint Made of Vanadium Free Titanium Alloy with Heat Resistance.

Matsushita, Tomiharu; Doi, Kenji; Sasaki, Yoshio; Maehara, Katsuhiko; Suda, T.

doi:10.2320/materia.38.239

Cited by 4 publications

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“…In addition, it is described that these alloys are applied to newly developed artificial hip joints, which are designed in consideration of suitability to Japanese physiques and to Japanese lifestyles, and which have shown excellent clinical results. 6) …”

Section: Introductionmentioning

confidence: 99%

Application of Vanadium-Free Titanium Alloys to Artificial Hip Joints

et al. 2002

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The application of titanium and its alloys to surgical implants has created much interest recently. Ti-6Al-4V has been used for numerous applications that require high mechanical properties, however this alloy contains vanadium, which has been proven to be cytotoxic. Two types of vanadium-free titanium alloys were developed and applied to artificial hip joints. As for the cemented type, Ti-15Mo-5Zr-3Al alloy was adopted because of its high fatigue strength, and its low elastic modulus, which approaches bone elasticity. As for the non-cemented type, Ti-6Al-2Nb-1Ta-0.8Mo alloy was adopted because of its less decrease of fatigue strength through heat treatments up to 1270 K, which is necessary to create the porous surface to activate the reaction between the implant and the bone. In addition, new coatings and bioactive methods were applied to the newly developed non-cemented type of prostheses. These hip joints are now successfully being used with excellent clinical results.

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Section: Introductionmentioning

confidence: 99%

Application of Vanadium-Free Titanium Alloys to Artificial Hip Joints

et al. 2002

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“…Ti-6Al-7Nb was developed in Switzerland and Ti-13Zr-13Nb in the United States. Ti-6Al-2Nb-1Ta [1], Ti-15Zr-4Nb-4Ta-0.2Pd [2], and Ti-29Nb-13Ta-4.6Zr [3] were designed in Japan. Ti-29Nb-13Ta-4.6Zr [3] is transformed to a β-type alloy with heat treatment and forging and shows a Young's modulus of 47 GPa, which is the lowest value in the world for a titanium alloy.…”

Section: Titanium Alloymentioning

confidence: 99%

Recent Development of New Alloys for Biomedical Use

Hanawa

2006

MSF

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Metallic materials are widely used in medicine not only for orthopedic implants but also for cardiovascular devices and other purposes. New alloys for biomedical use are developed all over the world continuously to decrease corrosion, toxicity and fracture during implantation and increase interfacial and dynamical tissue compatibility. Most of efforts are made to develop titanium alloys, especially in β-type alloys whose Young’s modulus is as low as cortical bone. Nickel-free alloy is also necessary to prevent nickel allergy: nickel-free austenitic stainless steels and shape memory alloys are developed. To increase iocompatibility, the controls of surface morphology and surface treatment or modification are necessary.

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Development of Ti alloy for medical implants.

Okazaki¹

1999

J. Japan Inst. Light Metals

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Development of Porous Coated Type Artificial Hip Joint Made of Vanadium Free Titanium Alloy with Heat Resistance.

Cited by 4 publications

References 0 publications

Application of Vanadium-Free Titanium Alloys to Artificial Hip Joints

Application of Vanadium-Free Titanium Alloys to Artificial Hip Joints

Recent Development of New Alloys for Biomedical Use

Development of Ti alloy for medical implants.

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