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Brett Levine et al.
The Journal of the American Academy of Orthopaedic Surgeons, 14(12), 646-655 (2006-11-02)
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), and high frictional characteristics make it conducive to biologic fixation. Tantalum...
Geon Joon Lee et al.
Journal of nanoscience and nanotechnology, 13(5), 3451-3454 (2013-07-19)
In this paper, we investigated the optical and structural properties of the Ag:Ta2O5 nanocomposites. The nanocomposite films were prepared by magnetron co-sputtering of Ta2O5 with Ag chips. The transmission electron microscopy images clearly revealed that Ag nanoparticles were successfully produced...
Tohru Tsuruoka et al.
Nanotechnology, 23(43), 435705-435705 (2012-10-13)
Quantized conductance was observed in a cation-migration-based resistive switching memory cell with a simple metal-insulator-metal (MIM) structure using a thin Ta(2)O(5) layer. The observed conductance changes are attributed to the formation and dissolution of a metal filament with an atomic...
R Rawat et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 25(6), 066011-066011 (2013-01-15)
Magnetic behavior of the pseudo-binary alloy Hf(1-x)Ta(x)Fe(2) has been studied, for which the zero-field ferromagnetic (FM) to antiferromagnetic (AFM) transition temperature is tuned near to T = 0 K. Our studies show that such composition lies around x = 0.230....
Biomimetic oxygen activation by MoS2/Ta3N5 nanocomposites for selective aerobic oxidation.
Qingsheng Gao et al.
Angewandte Chemie (International ed. in English), 51(47), 11740-11744 (2012-10-17)
Xiao-kang Tang et al.
Zhongguo gu shang = China journal of orthopaedics and traumatology, 26(7), 617-620 (2013-10-19)
Incorrect treatment for femur head necrosis can cause collapse of femoral head and tresult in severe harm for the patients (especially for the patient with middle-aged and young). The structure and mechanics characteristics of tantalum rod is similar to bone...
Mariano Fernandez-Fairen et al.
Clinical orthopaedics and related research, 471(11), 3543-3553 (2013-07-26)
Porous tantalum is an option of cementless fixation for TKA, but there is no randomized comparison with a cemented implant in a mid-term followup. We asked whether a tibial component fixed by a porous tantalum system might achieve (1) better...
Yongyuan Guo et al.
International journal of molecular medicine, 31(3), 689-697 (2013-01-23)
Titanium (Ti) alloys of the β-type are highly attractive metallic materials for biomedical applications due to their low elastic modulus, high corrosion resistance and notable biocompatibility. A new β-type Ti35Nb2Ta3Zr alloy with a low Young's modulus of approximately 48 GPa was previously...
Pinar Frank et al.
Optics letters, 37(17), 3603-3605 (2012-09-04)
Here we present a surface based on double-layered nanoparticle stacks suitable for spectro-electrochemical applications. The structure is formed on a continuous gold layer by a two-dimensional periodic array of stacks of gold and tantalum pentoxide nanodisks. Reflection spectra in the...
Metallosis and elevated serum levels of tantalum following failed revision hip arthroplasty--a case report.
George C Babis et al.
Acta orthopaedica, 85(6), 677-680 (2014-08-21)
A M Ashmore et al.
Journal of biomechanics, 45(16), 2931-2934 (2012-10-13)
Interest in soft tissue RadioStereometric Analysis (RSA) is rising. Previous studies have attempted to use this technique to analyse anterior cruciate ligament (ACL) graft constructs, and more recently, the movement of soft tissue as a precursor to RSA follow up...
Qi Wu et al.
Neurology India, 61(3), 265-269 (2013-07-19)
Aneurysms located at distal posterior inferior cerebellar artery (PICA) are rare. These aneurysms are difficult for surgical or endovascular treatment, especially for ruptured aneurysms. To investigate the clinical and radiologic efficacy of parent artery occlusion (PAO) with embolic agent Onyx...
Nohra Chalouhi et al.
World neurosurgery, 80(3-4), 436-436 (2012-04-10)
Lenticulostriate artery (LSA) aneurysms are uncommon. Most reported cases have been surgically treated. There are only three reports of LSA aneurysms treated with endovascular techniques. We report the case of a 49-year-old man who presented with a hemorrhage in the...
Ulrich Dorn et al.
The Journal of arthroplasty, 29(4), 831-835 (2013-10-09)
This study compared the corrosion behavior of tantalum-coated cobalt-chromium modular necks with that of titanium alloy modular necks at their junction to titanium-alloy femoral stem. Tests were performed in a dry assembly and two wet assemblies, one contaminated with calf...
Extrascleral spread of choroidal melanoma via tantalum marker suture track.
Shilpa J Desai et al.
JAMA ophthalmology, 131(12), 1643-1645 (2013-10-05)
Frédéric Clarençon et al.
Journal of neurosurgery. Spine, 18(6), 606-610 (2013-04-23)
Presurgical devascularization of hypervascular spinal metastases has been shown to be effective in preventing major blood loss during open surgery. Most often, embolization can be performed using polyvinyl alcohol (PVA) microparticles. However, in some cases, the close relationship between the...
Clinical use of porous tantalum in complex primary total knee arthroplasty.
Neil P Sheth et al.
American journal of orthopedics (Belle Mead, N.J.), 38(10), 526-530 (2009-12-17)
Christopher F Mallinson et al.
Inorganic chemistry, 52(17), 9994-9999 (2013-08-21)
Reactions of Ta(NMe2)5 and n-propylamine are shown to be an effective system for sol-gel processing of Ta3N5. Ordered macroporous films of Ta3N5 on silica substrates have been prepared by infiltration of such a sol into close-packed sacrificial templates of cross-linked...
Re: Fernandez-Fairen M, Murcia A, Torres A, et al. Is anterior cervical fusion with a porous tantalum implant a cost-effective method to treat cervical disc disease with radiculopathy? Spine 2012; 37:1734–41.
Robert A Beatty
Spine, 38(4), 369-369 (2012-10-13)
C Minoia et al.
The Science of the total environment, 95, 89-105 (1990-06-01)
Neutron activation analysis-electrothermal atomic absorption spectroscopy (ETA-AAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) have been used for the determination of 46 elements in urine, 35 in blood and 26 in serum of unexposed Italian subjects living in the...
Gaurav Jindal et al.
Otolaryngologic clinics of North America, 45(6), 1423-1449 (2012-11-17)
A review of the current clinical applications of a variety of percutaneous and endovascular interventional procedures of the extracranial head and neck is presented. After a description of general principles and embolic agents for interventional procedures, management of specific disorders...
In response.
Mariano Fernandez Fairen et al.
Spine, 38(4), 370-371 (2012-12-04)
Ogliaro, F. et al.
Inorganic Chemistry, 37, 6199-6199 (1998)
[Tantalum dust as a contrast substance for laryngography and bronchography (a review of the literature)].
R M Rabinovich
Vestnik rentgenologii i radiologii, (1)(1), 77-79 (1981-01-01)
Sining Yun et al.
ChemSusChem, 6(3), 411-416 (2013-01-31)
Ta-based compounds show Pt-like behavior: Binary tantalum compounds as counter electrodes (CEs) in dye-sensitized solar cells (DSCs) demonstrate Pt-like electrocatalytic activity and competitive photovoltaic performance, matching the performance of DSCs with Pt CEs. The first-principle density functional theory (DFT) calculations...
Payam Rabiei et al.
Optics express, 21(6), 6967-6972 (2013-04-03)
Submicron tantalum pentoxide ridge and channel optical waveguides and microring resonators are demonstrated on silicon substrates by selective oxidation of the refractory metal, tantalum. The novel method eliminates the surface roughness problem normally introduced during dry etching of waveguide sidewalls...
Paul S Issack
The Journal of bone and joint surgery. American volume, 95(21), 1981-1987 (2013-11-08)
➤ Over the past decade, porous tantalum has emerged as a powerful tool for reconstruction of the failed acetabular component.➤ The increased porosity, high coefficient of friction, and favorable elastic modulus of porous tantalum compared with traditional titanium mesh or...
Brett Levine et al.
The journal of knee surgery, 20(3), 185-194 (2007-08-02)
Porous tantalum represents an alternative metal for primary and revision total knee arthroplasty (TKA) with several unique properties. Tantalum is a transition metal, which in its bulk form has shown excellent biocompatibility and is safe to use in vivo as...
Nilesh Patil et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 89(1), 242-251 (2008-10-08)
Conventional porous-coated joint prostheses used in hip and knee reconstruction have demonstrated good clinical results, however, these implants possess some inherent shortcomings such as low volumetric porosity, suboptimal frictional characteristics, and higher modulus of elasticity relative to that of bone....
CORR Insights ®: Trabecular metal in total knee arthroplasty associated with higher knee scores: a randomized controlled trial.
Geert Pagenstert
Clinical orthopaedics and related research, 471(11), 3554-3555 (2013-08-29)
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