Abstract and Figures. [Objective] To determine the cellular compatibility of porous tantalum-niobium (Ta-Nb) material. [Method] Rabbit osteoblasts were co-cultured with porous Ta-Nb material. The ...Web

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Background 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. Methods From January 2008 to December 2013, porous tantalum rod implantation for ONFH was performed in two institutions. Statistical analysis of operation …Web

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

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

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

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

Purpose: Three-dimensional (3D) technology has emerged as a new treatment method due to its precision and personalization. This study aims to explore the application of a 3D …Web

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

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

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

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

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

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

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