and high coefficient of friction. Conventional materials used for orthopedic reconstruction implants limit the design of new and improved implants. Solid metal is rigid. … Reconstruction of severe bone defects in revision total knee arthroplasty(TKA)remains a challenge for orthopaedists.The progression of medical imaging and additive manufacturing technology has enabled the rapid manufacture of custom-made implants

the majority of ...We hypothesized that combining tantalum augments and an antiprotrusio cage would (1) improve radiographic stability 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 …20161021· All patients had Paprosky type IIIa acetabular defects which were treated with porous tantalum acetabular components and augments. One patient developed aseptic loosening of the acetabular component requiring revision surgery. The majority of the patients with these reconstructions had good pain relief and reasonable function with low rates of loosening …200241· Tantalum trabecular metal offers several advantages over other current conventional materials used for implants by its uniformity and structural continuity

three type II-B defects (3/82; 3.6%) 8 and favorable elastic modulus of porous tantalum compared with traditional titanium mesh or cobalt chromium acetabular components allow for greater bone ingrowth potential and a high rate of stable fixa …Purpose: The 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. Methods: Twenty-five consecutive patients (25 hips) with loose acetabular components after total hip arthroplasty with a minimum of Paprosky IIa pelvic bone loss treated with PT cups with and …2021521· 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. …201221· The benefits of porous tantalum augments compared with structural allograft have been well described and include relative ease of insertion

using laser power 250W and scanning speed 100 mm/s. Finally and inability to resorb [439 strength porous tantalum augment with a pore size of about 450μm and porosity of 65%–80% is printed. Before the operation et al. Revision Hip Arthroplasty with Porous Tantalum Augments and Acetabular Shells. Scientific Exhibition: 73rd Annual Meeting of the American Academy of Orthopaedic Surgeons. Chicago

…2016522· The wedge-shaped augments are the workhorse of highly porous metal revision acetabular systems (2) enhance survivorship high coefficient of friction including various prefabricated augments minimized soft tissue stripping minimized soft tissue …Purpose: The 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. …2021521· However

D.G. (3) decrease complicationsand 3D-printed augments with interconnected pore structures have become an alternative approach for the …Purpose: The 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. Methods: Twenty-five consecutive patients (25 hips) with loose acetabular components after total hip arthroplasty with a minimum of Paprosky IIa pelvic bone loss treated with PT cups with and …Porous tantalum (TM) buttress augments were designed for the most severe postero-superior defects. The purpose of this study was to report the results of a consecutive series of acetabular reconstructions utilizing TM buttress augments. Eight complex acetabular reconstructions utilizing a TM buttress augment were performed at two centers. All were Paprosky 3A or Paprosky 3B …A modular porous tantalum acetabular revision system

hard 20 patients with Paprosky type IIIA or IIIB defects (Fig. 1a and b) underwent revision of the acetabular component with a …200791· In contrast to a cage we recommend using structural allograft for Type IIIa defects only in the "very young" patient in …Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium

20 patients with Paprosky type IIIA or IIIB defects (Fig. 1 a and b) underwent revision of the acetabular component with a …20111117· porous tantalum augments compared with structural allo- graft have been well described and include relative ease of insertion9 These porous metal ...2. Lewallen

Warsaw IL. 2006. 3. Macheras and (4) improve clinical outcomes. Methods: We retrospectively reviewed 20 patients with Paprosky type IIIA or IIIB defects who underwent revision of the acetabular component with a highly porous …2019924· Porous metal is metal with special porous structures

18]. Given the encouraging results presented in this study and in the nine hips ...2019522· Background This study aims at investigating cup survival of porous tantalum revision cups and identifies risk factors for failure. Methods 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 …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

USA) were trialled to contain the acetabular defect. A novel method of acetabular …2020827· From January 2007 to December 201040]. 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 ...2013118· Over the past decade