Porous Tantalum Institute

Porous Tantalum Cones for Large Metaphyseal Tibial Defects

Porous Tantalum Cones for Large Metaphyseal Tibial Defects in Revision Total Knee Arthroplasty A Minimum 2-Year Follow-up William J Long, MD, FRCSC, and Giles R Scuderi, MD

Technology of Porous Tantalum Production

prepared tantalum-based materials assume the technological application of the investigation re-sults Keywords Tantalum, Cadmium, Porous Structures, Specific Surface 1 Introduction The methods for preparing of porous metals, known to date, are multi-staged and complicated [2][1] The a u-

Porous Tantalum Coatings Prepared by Vacuum Plasma

Our observation suggested that the porous tantalum coatings had good biocompatibility and could enhance osseoinductivity in vitro and promote new bone formation in vivo The porous tantalum coatings prepared by VPS is a promising strategy for bone regeneration

Technology of Porous Tantalum Production

The assessment of the specific surface area of the film tantalum and porous tantalum coating, performed by BET method, revealed the increase in the specific surface area by at least 2775 m 2 /g Та only because of pore 10 nm in diameter 4 Conclusions

Tantalum coating of porous carbon scaffold supplemented

Preparation of RVC and porous tantalum RVC and porous tantalum were produced by Institute of Metal Research, Chinese Academy of Sciences and Zhongshan Hospital of Dalian University, respectively

Porous tantalum and tantalum oxide nanoparticles for

The unique bone-mimicking properties of porous tantalum enabled the use of tantalum as a material for bulk implants, and not only for coatings, as is the case with other porous metals

Metaphyseal Sleeves and Cones in Revision Total Knee

The surgical technique for porous tantalum metaphyseal cones has previously been described [8, 27, 43, 44] Once the surgeon has decided to use a metaphyseal cone, a trial intramedullary stem or reamer may be used to create the appropriate positioning of the cone

Porous tantalum metaphyseal cones for severe tibial bone

Methods: Sixty-six porous tantalum tibial cones (sixty-three patients) were reviewed at a mean follow-up time of seventy months (range, sixty to 106 months) According to the Anderson Orthopaedic Research Institute bone defect classification, twenty-four knees had a Type-3 defect, twenty-five knees had a Type-2B defect, and seventeen knees had

Technology of Porous Tantalum Production - scirporg

This behavior of the tantalum-cadmium film coating makes it possible to prepare a porous tantalum with the developed surface by forming the film with Ta concentration less than 30 at% (Cd is remaining) and subsequent distillation of volatile metal

Bone ingrowth characteristics of porous tantalum and

Porous tantalum ring required less bone graft to achieve bone healing equivalent to the carbon fiber cage Our study showed that the porous tantalum ring has the advantage of allowing bone ingrowth into the pores and through the central hole, which is the most potentially effective for further evaluation

Porous tantalum and tantalum oxide nanoparticles for

Porous tantalum and tantalum oxide nanoparticles Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, tantalum, porous tantalum, tantalum oxide, x

Porous [email protected] Silicate as a Tandem Catalyst for

a porous siliceous cover The acidity of the catalyst has been tuned by introducing tantalum in the framework structure The use of easily available metals for the synthesis of catalysts reduces the cost of making the catalyst and it also gives high temperature resistance characteristics

Porous Tantalum Coatings Prepared by Vacuum Plasma

bone formation in vivo The porous tantalum coatings prepared by VPS is a promising strategy for bone regeneration Citation: Tang Z, Xie Y, Yang F, Huang Y, Wang C, et al (2013) Porous Tantalum Coatings Prepared by Vacuum Plasma Spraying Enhance BMSCs Osteogenic Differentiation and Bone Regeneration In Vitro and In Vivo

Experimental and clinical performance of porous tantalum

Porous tantalum, a new low modulus metal with a characteristic appearance similar to cancellous bone, is currently available for use in several orthopedic applications (hip and knee arthroplasty, spine surgery, and bone graft substitute)

Porous tantalum and tantalum oxide nanoparticles for

Porous materials have re-shaped the landscape of bone implants, as they allow for bone ingrowth and biological fixation, and eliminate implant loosening and related treatment failures The unique bone-mimicking properties of porous tantalum enabled the use of tantalum as a material for bulk implants, and not only for coatings, as is the case

Tantalum coating of porous carbon scaffold supplemented

In addition, porous tantalum rods with or without autologous BMSCs were implanted on hind legs in dogs, respectively The osteogenic potential was observed by hard tissue slice examination At three weeks and six weeks following implantation, new osteoblasts and new bone were observed at the tantalum–host bone interface and pores

Tantalum - Wikipedia

Tantalum is a chemical element with symbol Ta and atomic number 73 Previously known as tantalium, its name comes from Tantalus, a villain from Greek mythology Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant

Journal of Orthopaedics

Porous tantalum preparation and properties Porous tantalum is a new biomaterial, which was constructed a decade ago 17,18 Preparation of porous tantalum starts with polyurethane’s foam pyrolysis (thermal conversion)

Porous Tantalum Coatings Prepared by Vacuum Plasma

Our observation suggested that the porous tantalum coatings had good biocompatibility and could enhance osseoinductivity in vitro and promote new bone formation in vivo The porous tantalum coatings prepared by VPS is a promising strategy for bone regeneration

Design Rationale - smith-nephew

We would like to thank the following surgeons for their participation as part of the R3™ Acetabular System design team: Illinois Bone and Joint Institute Glenview, Illinois Porous tantalum, EDM-shaped Porous tantalum, net-shaped

Porous tantalum stimulates the proliferation and

Porous tantalum (Trabecular Metal™, Ta) is an alternative to titanium and has been successfully used in numerous short- and long-term clinical implant studies for over a decade7–10 As an implant material, Ta possesses a variety of highly attractive physicochemical, mechanical, and biological properties, including a fully interconnecting

Are porous tantalum cups superior to conventional

Are porous tantalum cups superior to conventional reinforcement rings? A retrospective cohort study of 207 acetabular revisions Anders Brüggemann Department of Orthopedics, Institute of Surgical Sciences, Uppsala University Hospital, Uppsala, Sweden Correspondence [email protected]

Peter Ze Tang | LinkedIn

In this study, porous tantalum coatings were first successfully fabricated on titanium substrates by vacuum plasma spraying (VPS), which would exert the excellent biocompatibility of tantalum and alleviate the elastic modulus of tantalum for bone tissue

1776 IEEE TRANSACTIONS ON COMPONENTS, PACKAGING …

with an array of printed and sintered tantalum nanoparticles Tantalum pentoxide grown on the porous Ta surface through the process of electrochemical oxidation of tantalum forms the conformal dielectric Conducting particles were used as the cathode with Au as the current collector Further details

Tantalum coating of porous carbon scaffold supplemented

In this study, the biocompatibility of domestic porous tantalum was first successfully tested with bone marrow stromal stem cells (BMSCs) in vitro and for bone tissue repair in vivo We evaluated cytotoxicity of RVC scaffold and tantalum coating using BMSCs

Chinese 3D-Print Joints From Tantalum | Orthopedics This Week

Trabecular Metal, per the company, is a highly porous biomaterial made from elemental tantalum with structural, functional and physiological properties similar to bone The material, which features a 100% open, engineered and interconnected pore structure to support bony in-growth and vascularization, has been used in a variety of orthopedic

Public Science Framework-Journals - Paper - HTML

Porous tantalum has long been used in orthopedics for enhanced bone in-growth The purpose was to evaluate soft tissue integration into transcutaneous porous tantalum implants Eighteen porous tantalum and four solid titanium implants were placed within and passed through the subcutaneous tissues of swine

Trabecular Metal™ Technology | Zimmer Biomet

Zimmer Biomet's Trabecular Metal Material is a unique, highly porous biomaterial made from elemental tantalum with structural, functional, and physiological properties similar to that of bone 1 The material features a 100% open, engineered and interconnected pore structure to support bony in-growth and vascularization 1,2 The material has

Are porous tantalum cups superior to conventional

Background and purpose — Porous tantalum cups have been introduced as an alternative to various reinforcement rings in revision hip surgery

Formation of Porous α Tantalum in Films - rdspringer

Formation of Porous α Tantalum in Films Yu Zh Tuleushev a *, V N Volodin a , and A R Brodskii b a Institute of Nuclear Physics, National Nuclear Center, ul

Failure of porous tantalum cervical interbody fusion

Failure of porous tantalum cervical interbody fusion devices: Two-year results from a prospective, randomized, multicenter clinical study Journal of Spinal Disorders and Techniques , 26 (5), 239-245

Metaphyseal Sleeves and Cones in Revision Total Knee

Recent Innovations In 1999, Bobyn et al [] studied cylindrical porous tantalum implants in a transcortical canine modelTwo pore sizes (430 and 650 μm) were used, and the shear strength of the bone-implant interface was assessed

Trabecular Metal™ Technology | Technology | Zimmer Biomet

Trabecular Metal Material is a unique, highly porous biomaterial made from elemental tantalum with structural, functional, and physiological properties similar to that of bone

A Monoblock Porous Tantalum Acetabular Cup Has No

The monoblock porous tantalum acetabular cup was designed to minimize osteolysis, but whether it does so is unclear Questions/purposes We evaluated the incidence of osteolytic lesions after THA using a monoblock porous tantalum acetabular component

Porous tantalum and tantalum oxide nanoparticles for

Based on in vitro studies, a porous Titanium-Niobium In another study, porous tantalum has been used as alloy has just been reported as a cost effective alterna- the midsection of a dental implant instead of a titanium tive to porous Tantalum with corrosion resistance and alloy, which is a standard for this application

Anthony S Unger, MD - Johns Hopkins Hospital

Dr Anthony S Unger is the medical director for the Gildenhorn Institute for Bone and Joint Health and an orthopaedic surgeon at Sibley Memorial Hospital Gruen T "Evaluation of a porous tantalum uncemented acetabular cup in revision total hip arthroplasty: clinical and radiological results of 60 hips" J Arthroplasty 2005 Dec;20(8):1002

Stable, Low-ESR Tantalum Capacitors - Newark element14

theoretical density A tantalum wire is either pressed into the slug prior to sintering or is butt-welded to the slug after some degree of sintering The tantalum wire serves as the positive electrical connection to the porous tantalum slug while the substantial exposed surface area of the porous slug serves as the positive plate of the capacitor

NANOSCALE ELECTRODE AND DIELECTRIC MATERIALS, …

NANOSCALE ELECTRODE AND DIELECTRIC MATERIALS, PROCESSES AND INTERFACES TO FORM THIN-FILM TANTALUM CAPACITORS FOR HIGH-FREQUENCY APPLICATIONS Approved by: Dr Rao Tummala, Advisor Dr Hamid Garmestani School of Materials Science and School of Materials Science and Engineering Engineering

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