Our Product

porous porous tantalum use

The Use of Porous Tantalum in Complex Acetabular Revisions

Tantalum has been used in a variety of medical implants since the mid-1900's and is known to be relatively immunologically inert in vivo 3. However, porous tantalum is biologically active and animal studies have demonstrated bone ingrowth within porous tantalum structures 4,5. These studies have demonstrated histologically that there is

More

Porous tantalum structures for bone implants: fabrication

The relatively high cost of manufacturing and the inability to produce modular implants have limited the acceptance of tantalum, in spite of its excellent in vitro and in vivo biocompatibility. In this article, we report how to process Ta to create net-shape porous structures with varying porosity u

More

(PDF) Porous Tantalum in Orthopedic Surgery: An Answer or

Jul 03, 2012· 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

More

Acetabular Component Revision Using a Porous Tantalum

Oct 01, 2009· Nehme et al reported on the use of tantalum acetabular augments in a series of 16 patients. They report that radiolucencies were filled on 14 of the 16 patients and suggest that porous implants manufactured with tantalum provides a better construct for direct biological fixation for the entire acetabular construct.

More

Porous tantalum structures for bone implants: Fabrication

Aug 01, 2010· The development of porous tantalum is in its early stages of evolution, and in this work we have fabricated net shape, bulk porous Ta structures using high-power lasers in Laser Engineered Net Shaping (LENS™). The specific advantages of using laser processing in conjunction with LENS™ are: (i) the ability to control the melting of the high

More

Highly Porous Tantalum Acetabular Components Without

Oct 01, 2020· Porous tantalum metal acetabular components have been proposed for use without ancillary screw fixation due to their increased coefficient of friction . This RCT found that mean proximal migration of both tantalum and titanium acetabular components at 2 years was low. The mean proximal migration of the tantalum cohort was 0.17 mm at 2 years.

More

(PDF) Metallurgical Characterization of a Porous Tantalum

A highly porous tantalum biomaterial (Trabecular Metal TM)* with unique physical, mechanical, and tissue ingrowth characteristics has been developed for a variety of orthopaedic applications.

More

Porous tantalum in hip and knee reconstructive surgery.

Porous tantalum is a highly porous biomaterial with good biocompatibility, excellent corrosion resistance, and high coefficient of friction. The short term clinical results of porous tantalum in primary hip, revision hip, and knee reconstructive surgery are encouraging but further studies will be needed to determine whether the theoretical

More

Fabrication methods of porous metals for use in

A major concern with the use of porous implants in highly loaded applications is the effect the porous matrix might have on fatigue strength. Studies have shown that both Co–Cr alloys and Ti–6Al–4V alloys experience drastic reductions in fatigue strengths when fabricated as porous coatings on solid core structures [34], [35], [36], [37].

More

Multicentre use of a porous tantalum monoblock acetabular

The friction coefficient of porous tantalum on bone is approximately twice that of other porous surfaced biomaterials. The average pore diameter of the porous tantalum shell is 550 μm and the polyethylene liner is compression moulded into the porous tantalum shell to a depth of 1–2 mm, thus leaving 2–3 mm of porous tantalum for tissue in

More

Porous tantalum structures for bone implants: fabrication

The relatively high cost of manufacturing and the inability to produce modular implants have limited the acceptance of tantalum, in spite of its excellent in vitro and in vivo biocompatibility. In this article, we report how to process Ta to create net-shape porous structures with varying porosity u

More

Porous tantalum structures for bone implants: Fabrication

Aug 01, 2010· The development of porous tantalum is in its early stages of evolution, and in this work we have fabricated net shape, bulk porous Ta structures using high-power lasers in Laser Engineered Net Shaping (LENS™). The specific advantages of using laser processing in conjunction with LENS™ are: (i) the ability to control the melting of the high

More

(PDF) Porous Tantalum in Orthopedic Surgery: An Answer or

Jul 03, 2012· 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

More

Biocompatible Porous Tantalum Metal Plates in the

Porous tantalum metal plates have great application potential as a new implant material for internal fixation. Keywords: Bone plate, Nonunion, Porous tantalum metal, Tibial fracture. Introduction. Tibial fractures are generally caused by high‐energy injuries, and the incidence rate is 16.9/100 000 1.

More

Acetabular Component Revision Using a Porous Tantalum

Oct 01, 2009· Nehme et al reported on the use of tantalum acetabular augments in a series of 16 patients. They report that radiolucencies were filled on 14 of the 16 patients and suggest that porous implants manufactured with tantalum provides a better construct for direct biological fixation for the entire acetabular construct.

More

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. Moreover, porous tantalum also facilitates the ingrowth of soft tissue, including the formation of blood vessels that were found to assemble on the surface and

More

(PDF) The use of porous tantalum cages in the treatment of

The use of porous tantalum cages in the tr eatment of unremitting spondylodiscitis ve antibiotic thera py and a mul tidiscipli- nary team approach, is an effective wa y

More

Biocompatibility and osteogenic properties of porous tantalum

Porous tantalum has been reported to be a promising material for use in bone tissue engineering. In the present study, the biocompatibility and osteogenic properties of porous tantalum were studied in vitro and in vivo. The morphology of porous tantalum was

More

Tantalum Wikipedia

The high stiffness of tantalum makes it necessary to use it as highly porous foam or scaffold with lower stiffness for hip replacement implants to avoid stress shielding. Because tantalum is a non-ferrous, non-magnetic metal, these implants are considered to be acceptable for patients undergoing MRI procedures.

More

US9427268B2 Porous tantalum rod Google Patents

A porous tantalum rod is provided, which is a medical implantation used for treating collapsed articular surface of the femoral head or necrosis of the femoral head in phase I or phase II. The implantation includes a fastening structure formed on one end of the porous tantalum rod used for connecting with the osseous tissues and a through hole formed on the center of the porous tantalum rod.

More

Biocompatible Porous Tantalum Metal Plates in the

Mar 18, 2019· Porous tantalum metal plates have great application potential as a new implant material for internal fixation. Introduction. Tibial fractures are generally caused by high‐energy injuries, and the incidence rate is 16.9/100 000 1. Moreover, nonunion and

More

Porous Tantalum and Titanium in Orthopedics: A Review

Porous metal is metal with special porous structures, which can offer high biocompatibility and low Young’s modulus to satisfy the need for orthopedic applications. Titanium and tantalum are the most widely used porous metals in orthopedics due to their excellent biomechanical properties and biocompatibility. Porous titanium and tantalum have been studied and applied for a long history until

More

Porous tantalum and tantalum oxide nanoparticles for

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. Moreover, porous tantalum also facilitates the ingrowth of soft

More