Abstract Tantalum (Ta) as a new type of medical metal is now utilized in several orthopedic applications due to its excellent fracture toughness and workability, high corrosion resistance, good biocompatibility and X-ray visibility, but it lacks bioactivity. Therefore, pure Ta was hydrothermally calcified in CaHPO4 solution at 120–200 °C here …Web
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Porous tantalum metal is currently used in orthopaedic for manufacturing of structural component for primary and revision total hip and knee replacements and, more recently, in spine surgery and good clinical outcomes have been achieved especially in hip revision surgery, using tantalum implants. Expand. 40. Save.Web
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Purpose: This study mainly exams a novel treatment for infective segmental femoral defect, and we combined the 3D printed porous tantalum prosthesis and Masquelet's induce membrane technique to reconstruct bone defect and discussed the clinical effect. Method: The clinical research included 9 observational cases series, as a …Web
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sfully as a spinal interbody fusion device. However, to our knowledge, there has been no consensus on the optimal technique for evaluating spinal fusion when using porous tantalum implants. Methods. Twelve 12-week-old Danish Landrace pigs underwent 3 levels of anterior lumbar interbody fusion at L2–3, L4–5 and L6–7. One level …Web
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This paper systematically reviews the progress in research on tantalum surface modification for the first time, including physicochemical properties, biological …Web
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Porous tantalum has been used in a wide array of clinical applications in orthopedics including primary and revision joint replacement, tumor reconstructive surgery, spine fusion, management of osteonecrosis of the femoral head, and foot and ankle surgery. Porous tantalum, a novel biomaterial, was approved for use in orthopedic surgery by the Food …Web
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DOI: 10.1016/j.matdes.2021.110095 Corpus ID: 239276541; Porous tantalum scaffolds: Fabrication, structure, properties, and orthopedic applications @article{Gao2021PorousTS, title={Porous tantalum scaffolds: Fabrication, structure, properties, and orthopedic applications}, author={Hai Yan Gao and Jingzhou Yang and Xia Jin and Xinhua Qu and …Web
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Tantalum is a porous metal, whose elastic modulus, high frictional properties and biocompatibility make it an ideal construct to facilitate adequate bony fusion in spine surgery. ... First, a study done by AO ASIF Research Institute that observed bone remodeling initially might be a temporary porosis associated with necrosis due to …Web
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This paper focuses on the preparation of Zn2+-doped Ta2O5 nanorods on porous tantalum using the hydrothermal method. Porous tantalum is widely used in …Web
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Porous tantalum used in orthopedic applications has the pore size in the range 400–600 μm resulting in 75%–85% porosity (99% tantalum, 1% vitreous carbon …Web
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1. Background. Due to excellent corrosion resistance, toughness, and bioactivity, tantalum has been used for a variety of medical implant since 1940 [1–5].While titanium is still considered the gold standard for porous biomaterials with skeletal biocompatibility [6–8], tantalum has been increasingly used as bone-substitute material …Web
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Porous tantalum is a good candidate due to its excellent abrasion and corrosion resistance and good osteointegration. Combination of 3D printing technology and numerical simulation is a promising strategy to design and prepare patient-specific porous prostheses. However, clinical design cases have rarely been reported, especially from …Web
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Porous tantalum scaffolds have been developed and clinically utilized as superior implantable biomaterials for orthopedic applications owing to their exceptional corrosion resistance, biocompatibility, osteointegration, and osteoconductivity. Moreover, the biomimetic porous structure and mechanical properties of these scaffolds match those of ...Web
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Keywords: porous implants, tantalum, titanium, acetabulum, hip arthroplasty, hip replacement, revision hip arthroplasty, acetabular revision, primary stability. 1. Introduction. Total hip arthroplasty (THA) is a highly successful surgical intervention that is being performed with increasing frequency in cases of advanced osteoarthritis, and in ...Web
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Titanium and tantalum are the most widely used porous metals in orthopedics due to their excellent biomechanical properties and biocompatibility. Porous …Web
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Porous tantalum has proved to be a metal with advantageous biomechanical and osteoconductive properties [3,4,5]; moreover, it produces slight artifact in MRI . The use of porous tantalum cage in ACDF has been associated with good outcome and low rate of device-related complications at long-term follow-up [ 7, 8 ].Web
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3 State Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, People's Republic of China ... The compression property of porous tantalum decreased significantly after 20 times of reuse, and a large deviation was observed in the measured values. Further, the balling phenomenon was …Web
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The use of porous tantalum on the proximal surface of the femoral stem is expected to decrease postoperative bone loss around the prosthesis through early fixation. We conducted a multicenter randomized controlled study to determine if porous tantalum could reduce periprosthetic bone loss after THA. ... (SAS Institute, Cary, NC); p < 0.05 …Web
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Tantalum (Ta) and titanium (Ti) are ideal materials for interbody cages because of their biocompatibility, particularly when they are incorporated into a three-dimensional (3D) porous structure. We conducted an in vitro investigation of the cell attachment and osteogenic markers of self-fabricated uniform porous Ti (20%, 40%, …Web
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The porous tantalum coatings prepared by VPS is a promising strategy for bone regeneration. Introduction. In the last few years, great interest has been focused on tissue engineering as a potential therapeutic approach for musculoskeletal diseases. The role of metallic implants either for osteo-synthesis or for arthroplasty has been tested in ...Web
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We hypothesized that porous tantalum cups would be superior to Müller acetabular roof reinforcement rings (MARRs) in revision hip surgery with re-revision for aseptic loosening as the primary outcome measure. Patients and methods — 207 hips operated with either a porous tantalum cup (TM cup, n = 111) or a MARR (n = 96) at …Web
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Introduction. A porous tantalum cage is an open-cell structure designed in a dodecahedron pattern to simulate the biological cancellous bone. Its high porosity allows bone and tissue in-growth to provide secondary long-term stability [].Studies have shown that bone in-growth activity is twice higher than bony in-growth on polyetheretherketone …Web
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Saveetha Institute of Medical and Technical Sciences, Saveetha University Chennai 600077, Tamil Nadu, India Abstract Aim: To conduct a systematic review on porous tantalum titanium implants Objective: To conduct a systematic review on porous tantalum trabecular metal implants in order to summarise the concept andWeb
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The porous tantalum scaffold is a regular square lattice-like structure with a side length of 1.35 mm. Under the high magnification SEM image at 30k×, the surface of the porous tantalum scaffold in the Ta-3D group is relatively flat, while the porous tantalum metal material in the Ta-nano group shows a microporous nano-topographic surface ...Web
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A cubic porous tantalum (Ning Xia Orient Tantalum Industry Co. Ltd, Shizuishan, China) synthesized via 3-dimensional knitted wire framework and CVD (length, width, and height of 2.5–3.0 mm; Figure Figure1A) 1 A) was used in this study. The porosity was determined by the porous tantalum volumes and their net weights.Web
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Cal. No. 42072-1999 and National Building and Civil Engineering Institute No. 15 ... Porous tantalum tibial component did not have a favorable effect on the bone mineral density of the proximal ...Web
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The incorporation of porous tantalum in dental implants, such as a modified tapered, multithreaded titanium implant design, has shown promising outcomes [7,9,11]. A tapered, multithreaded, root-form, titanium dental implant design was modified by incorporating threads in the implant body's midsection with an unthreaded sleeve of …Web
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Porous tantalum spine implants. A cubic porous tantalum (Ning Xia Orient Tantalum Industry Co. Ltd, Shizuishan, China) synthesized via 3-dimensional knitted wire framework and CVD (length, width, and height of 2.5–3.0 mm; Figure 1 A) was used in this study. The porosity was determined by the porous tantalum volumes and their net weights.Web
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In this work, porous tantalum scaffolds (having porosity up to ~ 71%) were prepared via space holder technique at a lower sintering temperature of 1300 °C. Depending on the amount of porosity, the elastic modulus, yield and compressive strength of porous tantalum scaffolds were found to vary in the range of 1–7 GPa, 4–11 MPa and 22–30 …Web
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Porous tantalum (Ta) implants have important clinical application prospects due to their appropriate elastic modulus, and their excellent bone growth and bone …Web
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Abstract. Porous tantalum has been extensively used in orthopaedic surgery, including uncemented total knee arthroplasty (TKA). Favourable results were reported with earlier monobloc tibial components and the design evolved to modular implants. We aimed to analyse possible causes for extensive medial tibia bone loss, …Web
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available porous tantalum design for use in knee arthroplasty was the monoblock tibia tray with two hexagonal pegs and a fixed articular ultra-high molecular weight polyethylene ... Stefan Institute (JSI) with a proton beam of approximately 1 1 m2 size and up to 300 pA analytical current. The induced X-rays were collected with an SDD …Web
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Moreover, porous tantalum exhibits good biocompatibility associated with high corrosion resistance and bioactivity. As proven both in vitro and in vivo, intrinsic bioactivity can be further improved by surface modifications, which can favor cell adhesion, ... Science and Technology Policy Institute; Washington, DC, USA: 2012.Web
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Among them, porous tantalum (Ta) metal has been considered to be an ideal orthopaedic implant material. This new type of biomaterial can be produced by depositing a Ta coating on a porous carbon substrate . This was originally developed by Implex Corp., and named Hedroced. ... The Institute of Metal Research, Chinese …Web
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In this work, porous tantalum scaffolds with structures of cubic, G7 and rhombic dodecahedron with different strut angles were fabricated by electron beam powder bed fusion (EB-PBF). Uniaxial compressive testing and compression–compression fatigue testing were conducted on the EB-PBF built tantalum scaffolds.Web
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Porous tantalum is characterized as about 70% to 80% porous with an average pore size of 400 to 500 μm and with fully interconnected pores and stiffness similar to cancellous bone. Preliminary animal studies with transcortical porous tantalum implants have shown that this material supports rapid and extensive bone ingrowth [5].Web
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Porous tantalum (Ta) is a promising biomaterial and has been applied in orthopedics and dentistry for nearly two decades. The high porosity and interconnected pore structure of …Web
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