Bone ingrowth characteristics of porous tantalum and carbon fiber
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
اقرأ أكثرApplication of a novel porous tantalum implant in rabbit ant
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
اقرأ أكثرPOROUS TANTALUM TRABECULAR METAL: A Systematic …
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
اقرأ أكثرPorous tantalum implant for treatment of early-stage …
To evaluate the survival rate of porous tantalum rod implantation in the treatment of osteonecrosis of the femoral head (ONFH), evaluate its clinical effect and imaging results. From January 2008 to December 2013, porous tantalum rod implantation for ONFH was performed in two institutions. Statistical analysis of operation data, …Web
اقرأ أكثر1,*, Suyash Niraula 2, 3
3 Additive Manufacturing Institute of Science and Technology (AMIST), J.B. Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA; [email protected] ... released for use in orthopedic surgery, including porous tantalum, porous titanium (Ti),Web
اقرأ أكثرFrontiers | Advances in surface modification of …
6 Discussion. Tantalum as a bone replacement material has shown surprising biological properties. Porous tantalum, which has been applied in many clinical fields and achieved the effect of promoting …Web
اقرأ أكثرAdvances in surface modification of tantalum and porous …
This paper systematically reviews the progress in research on tantalum surface modification for the first time, including physicochemical properties, biological …Web
اقرأ أكثرOsteogenic differentiation of 3D-printed porous tantalum with …
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
اقرأ أكثرPorous Tantalum Coatings Prepared by Vacuum Plasma …
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 …Web
اقرأ أكثرPorous Tantalum and Titanium in Orthopedics: A Review | ACS
Titanium and tantalum are the most widely used porous metals in orthopedics due to their excellent biomechanical properties and biocompatibility. Porous …Web
اقرأ أكثرThe Use of Porous Tantalum for Reconstructing Bone Loss in …
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
اقرأ أكثرPorous tantalum scaffolds: Fabrication, structure, properties, and
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
اقرأ أكثرModeling and Characterization of Porous Tantalum Scaffolds
1 Introduction Conventionally, in bone tissue engineering, grafting materials are made porous to facilitate bone in-growth and vascularization [ 1, 2, 3 ]. The highly …Web
اقرأ أكثرPorous tantalum scaffolds: Fabrication, structure, properties, and
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
اقرأ أكثرEffects of reuse on the properties of tantalum powders and tantalum
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
اقرأ أكثرRevision Spinal Surgery for Posterior Migration of Tantalum …
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
اقرأ أكثرPorous Tantalum Coatings Prepared by Vacuum Plasma …
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
اقرأ أكثرComparison of the Primary Stability of Porous Tantalum and …
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
اقرأ أكثرThe Clinical Application of Porous Tantalum and Its New …
Porous tantalum (Ta) is a promising biomaterial and has been applied in orthopedics and dentistry for nearly two decades. The high porosity and interconnected …Web
اقرأ أكثرExperimental and clinical performance of porous tantalum in …
2004. TLDR. The purpose of the present study was to document the clinical results obtained with porous tantalum, a novel porous biomaterial made from commercially pure tantalum with higher volume porosity, more freely communicating pores, a higher coefficient of friction against bone, and a lower bulk stiffness. 291.Web
اقرأ أكثرEffects of porous tantalum on periprosthetic bone remodeling …
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
اقرأ أكثرVancomycin elution kinetics from porous tantalum metal
Institute of Movement and Locomotion, Saint-Marguerite Hospital, Boulevard Sainte-Marguerite, 13009 Marseille, France. ... 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 ...Web
اقرأ أكثرDesign and biomechanical analysis of patientspecific porous tantalum
Porous tantalum is a good candidate due to its excellent abrasion and corrosion resistance and good osteointegration. Combination of 3D 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
اقرأ أكثرModeling and Characterization of Porous Tantalum Scaffolds
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
اقرأ أكثرMicrostructure Optimization for Design of Porous Tantalum
Porous tantalum (Ta) implants have important clinical application prospects due to their appropriate elastic modulus, and their excellent bone growth and bone …Web
اقرأ أكثرThe Clinical Application of Porous Tantalum and Its New …
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 porous Ta promise fine bone ingrowth and new bone formation within the inner space, which further guarantee rapid osteointegration and bone–implant stability in the …Web
اقرأ أكثرPorous Tantalum
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
اقرأ أكثرThe clinical application of customized 3D-printed porous tantalum
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
اقرأ أكثرTotal Knee Replacement with an Uncemented Porous Tantalum …
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
اقرأ أكثرPorous Tantalum Structures for Bone Implants: Fabrication, …
Through the formation of a bone-like apatite layer in simulated body fluid, tantalum has been shown to be bioactive and biologically bond to bone. In several in vitro and animal …Web
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