Methods: Eighty-four patients (85 hips) underwent revision total hip arthroplasty with use of porous tantalum augments between 2000 and 2007 at a single institution and were retrospectively reviewed.
Conclusions: Through accurate surgical evaluation and preparation of 3D-printed porous tantalum implants, severe AORI classification type III Charcot joint disease can effectively restore the...
Porous tantalum has been proved to be one of the most suitable substitution materials for human bone due to its similar structure and mechanic properties as human bone. Furthermore, tantalum could stimulate cell proliferation, and improve the ability of osteogenesis of human osteoblasts. [17]
A modular porous tantalum acetabular revision system, including various prefabricated augments, provides a novel approach for these challenging cases. This system can be used to create structural support for an uncemented revision tantalum shell. This paper describes a stepwise technique of acetabular reconstruction using porous tantalum ...
Although the use of antiprotrusio cages solely shows suboptimal results, there are certain defects that still require their use. We hypothesized that combining tantalum augments and an...
Biologically, tantalum and titanium share a very pronounced thrombogenic potential, a property that may be important since blood clot formation is one of the first and essential steps in bone healing, and this distinguishes tantalum and titanium from other metals such as nickel (Hong et al. 2005).Furthermore, porous tantalum in the shape of "trabecular metal" has a very high porosity of 75 ...
Over the past two decades, the porous tantalum augment has emerged as a versatile and reliable option for reconstructing uncontained acetabular defects during revision THA [ 6, 8 ]. Porous tantalum has several unique mechanical properties that facilitate acetabular reconstruction [ 9 ].
A modular porous tantalum acetabular revision system, including various prefabricated augments, provides a novel approach for these challenging ... using porous tantalum augments that enables the surgeon to achieve initial stable fixation, with restoration of the center of rotation, and maximization of host bone contact. Semin Arthro 19:164 ...
To improve the possibility of biologic fixation when large bone loss is encountered, porous tantalum-made components and augments have been introduced in the last decade [ 28 ]. Compared with conventional porous materials, these components have a higher coefficient of friction against bone, lower stiffness and higher porosity [ 29 – 31 ].
Introduction: Reconstruction of acetabular bone defects by the combination of trabecular metal augments and porous cups can be complex when extensive bone loss and poor-quality bone exists. The...
Although the complication rate requiring further surgery was considerable, most patients with these reconstructions had pain relief and reasonable function with low rates of loosening at midterm followup. BackgroundInitial reports with short-term followup of porous tantalum acetabular components and augments for Paprosky IIIA acetabular defects demonstrate high hip scores, low rates of aseptic ...
Modular metal prosthetic augments have been used for several decades for treatment of bone deficiency during revision knee arthroplasty. 28 A new acetabular reconstructive technique has been developed with the use of modular metal augments using a novel biomaterial of porous tantalum (Trabecular Metal; Fig 1A). 3,7,9 These porous metal ...
Medicine International Orthopaedics The use of porous tantalum trabecular metal (TM) shell and augment to reconstruct acetabular defects in revision total hip arthroplasty (THA) is a reliable technique. We evaluated the mid-term implant survival, clinical, and radiological outcomes of our first 48 revisions using this technique.
The tantalum augment was fixed to fully intact acetabular bone with screws and fixed to the Trabecular Metal™ acetabular cup (Zimmer) with cement. In cases of osteolysis around the femoral stem on preoperative radiographs and intraoperative findings of instability, a femoral stem revision was performed together.
Several techniques have been developed for the treatment of acetabular bone defects, including impaction bone grafting (IBG) with cement cup, 5 acetabular reconstruction cages and support rings, 6 acetabular reconstruction cup-cage, 7 porous trabecular metal components and augments, 8 custom triflange components, 9 and custom-made acetabular ...
Use of Porous Tantalum for Acetabular Reconstruction in Revision Hip Arthroplasty, Journal of Bone and Joint Surgery | 10.2106/JBJS.L.01313 | DeepDyve Log in Sign up - Try 2 Weeks Free Get DeepDyve for your Group Browse How it Works Learn More Content Pricing DeepDyve Use of Porous Tantalum for Acetabular Reconstruction in Revision Hip Arthroplasty
In summary, a tantalum augment combined with an antiprotrusio cage in Paprosky IIIA and IIIB defects with divergent anatomy not amenable to a hemispherical socket provides a reliable technique to restore the anatomic hip center and prevent superior migration and provides a bony ingrowth surface.
A case of a 55-year-old man with Paprosky IIIB acetabular bone defect, used porous tantalum augments, and titanium-coated cup for reconstruction. a Pre-operative anteroposterior (AP) radiograph showing a loose acetabular component with Paprosky IIIB defect. b Post-operative AP radiograph at day 1. c Post-operative AP radiograph at 119 months sho...
PurposeThe purpose of this study was to evaluate early functional results of revision hip arthroplasty with pelvic bone loss revised with porous tantalum (PT) acetabular components.MethodsTwenty-five consecutive patients (25 hips) with loose acetabular components after total hip arthroplasty with a minimum of Paprosky IIa pelvic bone loss treate...
Initial reports with short-term followup of porous tantalum acetabular components and augments for Paprosky IIIA acetabular defects demonstrate high hip scores, low rates of aseptic loosening, and low rates of complications. However, longer-term followup with a larger cohort is needed to determine the durability of these reconstructions.
In contrast to a cage, tantalum metal implants provide a highly porous surface conducive to bone ingrowth 7, 8, 9. This propensity for bony ingrowth combined with the ability to use modular tantalum augments to achieve support and stability may change the way major defects are reconstructed.
porous metal augments for treatment of severe acetabular bone loss during revision hip arthroplasty. Clin Orthop Relat Res. 2004(429):201-208. Siegmeth A, Duncan C, Masri 3. B, Kim W, Garbuz D. Modular tantalum augments for acetabular defects in revision hip arthroplasty. Clin Orthop Relat Res. 2009;467(1):199-205. Milne L, Kop A, Kuster M. 4.
Eighty-four patients (85 hips) underwent revision total hip arthroplasty with use of porous tantalum augments between 2000 and 2007 at a single institution and were retrospectively reviewed. Fifty-seven of the patients (58 hips) had clinical and radiographic follow-up at a minimum of 5 years.
Trabecular Metal Material is made from elemental tantalum with structural, functional, and physiological properties similar to that of bone. 1 The material features a open, engineered and interconnected pore structure to support biological fixation and vascularization. 1,2 The material has over 20 years of demonstrated clinical use in ...
tantalum shell. This paper describes a stepwise technique of acetabular reconstruction using porous tantalum augments that enables the surgeon to achieve initial stable fixation, with restoration of the center of rotation, and maximization of host bone contact.
The early results with tantalum augments are promising but longer followup is required, and quality-of-life parameters improved. AbstractLarge acetabular defects can be reconstructed with various methods depending on size and location of the defect. We prospectively followed our first 37 patients in whom we reconstructed the acetabulum with a trabecular metal augment combined with a trabecular ...
Tantalum metal augments possess a higher porosity and coefficient of friction, and have propensity for bony ingrowth and biological fixation [1], [11], [14], [17], [18]. Previous studies have confirmed favorable results for tantalum cup with augments in revision THA associated with acetabular bone defects [17], [19], [20].
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. ... and porous Ta augments (see Fig. 17 A). Core decompression with insertion of a porous Ta rod is ...
At mid-term follow-up, it showed that the porous tantalum components can successfully serve as a stable, well-fixed and durable construct, without any case of mechanical failure. In primary periacetabular malignancies, a more precise resection can be achieved under meticulous preoperative planning and principles of complete resection.
After almost 2 decades of clinical use, porous tantalum has become an important component in the orthopedic surgeon's toolbox, and its most common use today is as acetabular cups, cages, or augments in revision arthroplasty.
