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  • Porous tantalum: A new biomaterial in orthopedic surgery

    2018-01-01· Porous tantalum has the ability to form a self-passivating surface oxide layer which leads to the formation of a bone-like apatite coating in vivo and affords excellent bone and fibrous in-growth properties allowing for rapid and substantial bone and soft tissue attachment. The chapter discusses the biomaterial properties and orthopedic applications of porous tantalum. Previous chapter in book

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  • Use of porous tantalum metaphyseal cones for severe tibial

    Methods: Porous tantalum metaphyseal cones were implanted during fifteen revision total knee replacements in eight women and seven men who had an average age of 68.1 years at the time of the procedure. The patients had had an average of 3.5 prior total knee replacements. According to the Anderson Orthopaedic Research Institute bone defect classification, eight knees had a Type-3 defect

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  • Vancomycin elution kinetics from porous tantalum metal

    The mean concentration of vancomycin depends on the material, duration of bathing, the rinsing effect, and the drug dose. Our in‐vitro study is the first to show that porous tantalum cylinders allow antibiotic carriage and progressive release. If appearing in vivo, in a similar extent, this intrinsic property might be useful to prevent and/or

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  • Porous Tantalum Nitride Single Crystal at Two‐Centimeter

    Porous Tantalum Nitride Single Crystal at Two‐Centimeter Scale with Enhanced Photoelectrochemical Performance Dr. Lu Jin Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese

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  • Are porous tantalum cups superior to conventional

    Porous tantalum cups were introduced as an alternative strategy for acetabular revision surgery. At the microscopic level, its porous structure (resembling cancellous bone) offers a surface that facilitates bone ingrowth (Balla et al. 2010). Elasticity and high friction of porous tantalum allow good primary and secondary stability. Given these properties, porous tantalum cups appear to offer

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  • Porous Tantalum Cones for Large Metaphyseal Tibial Defects

    required the use of a porous tantalum cone for tibial From the Insall Scott KellyR Institute of Orthopaedics and Sports Medicine, New York, New York. Submitted March 24, 2008; accepted August 23, 2008. One of the authors is a consultant for Zimmer Inc. Implex, Warsaw, IN, USA. Reprint requests: William J. Long, MD, FRCSC, Attending

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  • (PDF) Porous Tantalum in Orthopedic Surgery: An Answer

    Porous tantalum is an alternative metal for total joint arthroplasty components that offers several unique properties. Its high volumetric porosity (70% to 80%), low modulus of elasticity (3 MPa

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  • Porous tantalum and tantalum oxide nanoparticles for

    Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Key words: tantalum, porous tantalum, tantalum oxide, x-ray, nanoparticles, regenerative medicine Correspondence should be addressed to M. Janowski, Email: [email protected] Received 22 February 2014, accepted 09 June 2014 . Tantalum for

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  • (PDF) Metallurgical Characterization of a Porous Tantalum

    A highly porous tantalum biomaterial (Trabecular Metal TM)* with unique physical, mechanical, and tissue ingrowth characteristics has been developed for a variety of orthopaedic applications. For

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  • Tantalum Wikipedia

    Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium, it is named after Tantalus, a villain from Greek mythology. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as minor components in alloys. The chemical inertness of tantalum

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  • Are porous tantalum cups superior to conventional

    Porous tantalum cups were introduced as an alternative strategy for acetabular revision surgery. At the microscopic level, its porous structure (resembling cancellous bone) offers a surface that facilitates bone ingrowth (Balla et al. 2010). Elasticity and high friction of porous tantalum allow good primary and secondary stability. Given these properties, porous tantalum cups appear to offer

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  • Porous tantalum and tantalum oxide nanoparticles for

    Moreover, porous tantalum also facilitates the ingrowth of soft tissue, including the formation of blood vessels that were found to assemble on the surface and within the structure of the porous tantalum. Also, since tantalum is strongly radiopaque due its high atomic number, this property is widely employed for marking in orthopedics and in endovascular medical devices. Another important

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  • Porous Tantalum Coatings Prepared by Vacuum Plasma

    Porous Tantalum Coatings Prepared by Vacuum Plasma Spraying Enhance BMSCs Osteogenic Differentiation and Bone Regeneration In Vitro and In Vivo. Ze Tang, 1, 2 Youtao Xie, 3, * Fei Yang, 2 Yan Huang, 1 Chuandong Wang, 1 Kerong Dai, 1, 2 Xuebin Zheng, 3 and Xiaoling Zhang 1, 2, * Jan Peter Tuckermann, Editor

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  • Porous Tantalum Cones for Large Metaphyseal Tibial Defects

    required the use of a porous tantalum cone for tibial From the Insall Scott KellyR Institute of Orthopaedics and Sports Medicine, New York, New York. Submitted March 24, 2008; accepted August 23, 2008. One of the authors is a consultant for Zimmer Inc. Implex, Warsaw, IN, USA. Reprint requests: William J. Long, MD, FRCSC, Attending

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  • Porous Tantalum Coatings Prepared by Vacuum Plasma

    2013-06-11· Tantalum, as a potential metallic implant biomaterial, is attracting more and more attention because of its excellent anticorrosion and biocompatibility. However, its significantly high elastic modulus and large mechanical incompatibility with bone tissue make it unsuitable for load-bearing implants. In this study, porous tantalum coatings were first successfully fabricated on titanium

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  • Porous tantalum and tantalum oxide nanoparticles for

    Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Key words: tantalum, porous tantalum, tantalum oxide, x-ray, nanoparticles, regenerative medicine Correspondence should be addressed to M. Janowski, Email: [email protected] Received 22 February 2014, accepted 09 June 2014 . Tantalum for

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  • Are porous tantalum cups superior to conventional

    Are porous tantalum cups superior to conventional reinforce-ment rings? A retrospective cohort study of 207 acetabular revisions Anders BRÜGGEMANN, Erik FREDLUND, Hans MALLMIN, and Nils P HAILER Department of Orthopedics, Institute of Surgical Sciences, Uppsala University Hospital, Uppsala, Sweden. Correspondence: [email protected] Submitted 2015-11-20.

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  • Bioactive tantalum metal prepared by micro-arc

    a Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China E-mail: [email protected] Fax: +86-10 The study aim was to evaluate the effect of micro-arc oxidation (MAO) and alkali treatment on porous tantalum specimens by foam immersion technology. Tantalum specimens modified by MAO formed an apatite layer on their surfaces in simulated body fluid (SBF).

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  • Tantalum-Niobium International Study Center TIC

    Representing the global tantalum & niobium industries About the Tantalum-Niobium International Study Center (T.I.C.) An international, non-profit association founded in 1974 under Belgian law. Around 90 members from over 30 countries involved with all aspects of the tantalum and niobium industry supply chain (mining, trading, processing, metal fabrication, capacitor manufacturing, recycling

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  • Metaphyseal Sleeves and Cones in Revision Total Knee

    Biomaterials, whether porous titanium or tantalum, aid in the success of revision TKAs by promoting osseointegration and providing structural stability for the implants. Indications for metaphyseal sleeves include patients with small bone defects typically categorized as Anderson Orthopaedic Research Institute (AORI) Type 1 or 2A. Metaphyseal cones are used in patients with larger bone defects

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