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porous tantalum use

porous tantalum use

Use of porous tantalum for acetabular reconstruction in ...

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 cobalt chromium acetabular components allow for greater bone ingrowth

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Use of porous tantalum metaphyseal cones for severe tibial ...

Conclusions: At the time of short-term follow-up, the porous tantalum metaphyseal tibial cones effectively provided structural support for the tibial implants in this series. The potential for long-term biologic fixation may provide durability for these tibial reconstructions.

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Porous tantalum: A new biomaterial in orthopedic surgery ...

Jan 01, 2018 · 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 by weight). This material has higher porosity compared to other porous materials used in orthopedic applications such as sintered beads (30%–35%) and fiber metal (40%–50%) [32].

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A single centre study of 41 cases on the use of porous ...

Conclusions: In summary, the use of porous tantalum metal implants in acetabular revision surgery achieves good to excellent short- term and mid-term functional results and an acceptable complication rate relative to the extent of defect and previous surgery.

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Porous tantalum and tantalum oxide nanoparticles for ...

One important application which benefited from the introduction of powder (particle) metallurgy is use of tantalum as bone implants. Porous materials have re-shaped the landscape of bone implants, as they allow for bone ingrowth and biological fixation, and eliminate implant loosening and related treatment failures.

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Multicentre use of a porous tantalum monoblock acetabular ...

May 29, 2008 · A press-fit porous tantalum monoblock acetabular component (Trabecular Metal Monoblock Acetabular Component System, Zimmer Inc, Warsaw, IN) was used and has two distinct profiles: (1) solid, and (2) with peripheral screw holes for adjunctive fixation.

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Development and Applications of Porous Tantalum Trabecular ...

Porous tantalum metal is used to improve the contact between osseous structure and dental implants; and therefore presumably facilitate osseointegration. Success of porous tantalum metal in orthopedic implants led to the incorporation of porous tantalum metal in the design of root-from endosseous titanium implants.

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Porous tantalum in spinal surgery: an overview

Porous tantalum is an open-cell metal structure that approximates the appearance of human cancellous bone. It has a low modulus of elasticity, close to that of subchondral and cancellous bones, leading to better load transfer and minimizing the stress-shielding phenomenon. Its coefficient of frictio Porous tantalum in spinal surgery: an overview

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Are porous tantalum cups superior to conventional ...

Oct 20, 2016 · Background and purpose— Porous tantalum cups have been introduced as an alternative to various reinforcement rings in revision hip surgery. 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.

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Porous structure and compressive failure mechanism of ...

Dec 01, 2021 · Tantalum (Ta) is an inert metal with high hardness, ductility, toughness, and excellent corrosion resistance that has been widely used in aerospace, the military industry, electronic appliances, automotive machinery, the chemical industry, and especially medical fields.

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The Use of Porous Tantalum Augments for the Reconstruction ...

Feb 01, 2018 · However, the use of tantalum augments combined with a porous titanium-coated cup for the reconstruction of acetabular defect in primary THA has been rarely reported. The purpose of this study is to evaluate the clinical and radiographic results of such a combination for the reconstruction of acetabular defect in primary THA.

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A single centre study of 41 cases on the use of porous ...

In summary, the use of porous tantalum metal implants in acetabular revision surgery achieves good to excellent short- term and mid-term functional results and an acceptable complication rate relative to the extent of defect and previous surgery. However, one should be aware of potential limitations

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Multicentre use of a porous tantalum monoblock acetabular ...

May 29, 2008 · 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 ...

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Can Porous Tantalum Be Used to Achieve Ankle and Subtalar ...

All of the hindfeet or ankles of our nine patients with porous tantalum have fused and we observed no complications. These observations are consistent with those reported with the use of tantalum in spinal fusion and treatment of bony defects in revision and primary THAs and TKAs [30, 36, 40, 47]. Tantalum has the advantage that it avoids donor ...

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Use of Porous Tantalum Metaphyseal Cones for Severe Tibial ...

Jan 01, 2008 · Methods: Porous tantalum metaphyseal cones were implanted during fifteen revision total knee replacements in eight women and seven men who had an average age of 68.1 years at the time of the procedure. The patients had had an average of

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Does the Risk of Rerevision Vary Between Porous Tantalum ...

The use of porous tantalum augments also was analyzed as a proxy for more complex acetabular reconstructions. In an attempt to further reduce selection bias, we performed subgroup analysis for primary operations attributable to osteoarthritis and first revision attributable to

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A new mode of clinical failure of porous tantalum rod

D ISCUSSION. Porous tantalum has demonstrated bone ingrowth and rapid fixation in animal models 17,18 and in human explant case reports. 19 – 20 It has similar flexural rigidity to the human fibula, thereby providing mechanical support to the subchondral plate while limiting stress shielding. 10,17 The operative technique is simple, free from risks and complications as

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Midterm Outcomes After Reconstruction of Superolateral ...

Aug 01, 2021 · The use of porous tantalum augments in the type II (dome) configuration for treatment of uncontained acetabular defects has been shown to provide excellent short-term and midterm outcomes [6,8,16,22]. The present study demonstrated satisfactory midterm outcomes after placement of porous tantalum augments in the type I (flying buttress ...

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Modeling and Characterization of Porous Tantalum Scaffolds ...

Jan 22, 2019 · 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 MPa,

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Trabecular Metal™ Technology | Zimmer Biomet

Zimmer Biomet's Trabecular Metal Material is a unique, highly porous biomaterial made from elemental tantalum with structural, functional, and physiological properties similar to that of bone. 1 The material features a 100% open, engineered and interconnected pore structure to support bony in-growth and vascularization. 1,2 The material has over 20 years of demonstrated

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Mid-term outcomes of tantalum cup– a single centre study ...

Oct 09, 2021 · However, most studies undoubtfully showed highly desirable outcomes with the use of porous tantalum (TM) cups, both in the mid-term and the long-term . To sum up, in our study, we noted a 96% tantalum cup survival at an average of 7.2 years of follow-up, no dislocations, a 1.6% deep infection rate and a 1.6% superficial infection rate, which is ...

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Long-term results of combined porous tantalum augments and ...

May 21, 2021 · Purpose The use of porous tantalum augments and titanium-coated cups in primary total hip arthroplasty (THA) with acetabular defects has shown satisfactory outcomes in our centre. The aim of this study was to report the long-term radiological and clinical outcomes of using this combination for Paprosky type III acetabular bone defects in acetabular revision.

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A single centre study of 41 cases on the use of porous ...

May 22, 2019 · This study aims at investigating cup survival of porous tantalum revision cups and identifies risk factors for failure. We retrospectively reviewed 41 patients treated between 2010 and 2012. Main indications were aseptic loosening in 83% and two-stage exchange after periprosthetic joint infection in 17% of cases. Mean follow-up period was 72 months.

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Applications of porous tantalum in total hip arthroplasty ...

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 has excellent biocompatibility and is safe to use in vivo.

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Use of Porous Tantalum for Acetabular Reconstruction in ...

Nov 06, 2013 · The porous tantalum cup is then impacted against the augment with a thin layer of cement placed at the interface of the augment and cup 31 ( Figs. 2-A , 2-B , and 2-C ). The use of porous tantalum augments in conjunction with porous tantalum shells has demonstrated good early stability in the face of major bone loss ( Figs. 3-A and 3-B ) 32 - 38 .

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Applications of porous tantalum in total hip arthroplasty ...

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 has excellent biocompatibility and is safe to use in vivo.

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The Clinical Application of Porous Tantalum and Its New ...

May 18, 2021 · 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 long term.

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Mid-term outcomes of tantalum cup– a single centre study ...

Oct 09, 2021 · However, most studies undoubtfully showed highly desirable outcomes with the use of porous tantalum (TM) cups, both in the mid-term and the long-term . To sum up, in our study, we noted a 96% tantalum cup survival at an average of 7.2 years of follow-up, no dislocations, a 1.6% deep infection rate and a 1.6% superficial infection rate, which is ...

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A single centre study of 41 cases on the use of porous ...

May 22, 2019 · This study aims at investigating cup survival of porous tantalum revision cups and identifies risk factors for failure. We retrospectively reviewed 41 patients treated between 2010 and 2012. Main indications were aseptic loosening in 83% and two-stage exchange after periprosthetic joint infection in 17% of cases. Mean follow-up period was 72 months.

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A single centre study of 41 cases on the use of porous ...

mon treatment option is the use of an antiprotrusion cage like the Burch-Schneider cage that provides good results [6, 7] in combination with cemented cups and bone graft. Highly porous metals like trabecular metal made out of porous tantalum have several advantages over con-ventional cementless cups: higher volume porosity, freely

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Biocompatibility and osteogenic properties of porous tantalum

Jan 23, 2015 · 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 observed using scanning electron microscopy (SEM). Osteoblasts were cultured with porous

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Comparison of the Primary Stability of Porous Tantalum and ...

The ancillary use of porous tantalum augments as buttresses in cases of insufficient acetabular rim support has also been reported to have superior results [2,39,40]. Konan et al. reported a 96% survivorship of the TM acetabular component and good functional outcome at a mean 11 year follow up in patients with Paprosky 11 and 111 defects [ 41 ].

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Osseointegration of porous titanium and tantalum implants ...

In this biomechanical study, we examined the strength of osseointegration of three porous titanium and one porous tantalum materials. We studied the breakout strength of the implanted materials 8 wk after their implantation in the metaphysis of the greater trochanter of the femur in an in vivo rabbit model.

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Trabecular Metal™ Technology | Technology | Zimmer Biomet

Zimmer Biomet's Trabecular Metal™ material is a unique, highly porous biomaterial made from elemental tantalum with structural, functional, and physiological properties similar to that of bone. 1 The material features a 100% open, engineered and interconnected pore structure to support bony in-growth and vascularisation. 1,2 The material has over 20 years of demonstrated

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Development of a cartilage composite utilizing porous ...

Feb 07, 2015 · Acetabular component revision using a porous tantalum biomaterial: a case series. J Arthroplasty. 2008;24(7):1068–73. Article PubMed Google Scholar 40. Meneghini RM, Lewallen DG, Hanssen AD. Use of porous tantalum metaphyseal cones for severe tibial bone loss during revision total knee replacement. Surgical technique.

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Technology of Porous Tantalum Production

Jun 09, 2016 · Technology of Porous Tantalum Production() Institute of Nuclear Physics, Almaty, Republic of Kazakhstan. Ion-plasma sputtering and codeposition of ultrafine Ta and Cd particles on a moving substrate were used to prepare the solid solutions, in particular, the alloys with up to 66.2 at.%. Cd in the form of coatings.

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US4059442A - Method for making a porous tantalum pellet ...

A quantity of tantalum powder is heated to a temperature greater than 400° C in a non-oxidizing atmosphere to dissolve the tantalum oxide film existing on the surfaces of the tantalum particles. The treated powder without conventional organic binders is compressed to form a unitary pellet in a mold maintained in an inert atmosphere. The pellet is subsequently heated in a vacuum to

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Highly Porous 3D Printed Tantalum Scaffolds Have Better ...

Sep 28, 2021 · Objective . To test the biomechanical properties of 3D printed tantalum and titanium porous scaffolds. Methods . Four types of tantalum and titanium scaffolds with four alternative pore diameters, #1 (1000-700 μ m), #2 (700-1000 μ m), #3 (500-800 μ m), and #4 (800-500 μ m), were molded by selective laser melting technique, and the scaffolds were

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