Modular trays (5.3 ± 3.2%) exhibited higher bone ingrowth than monoblock trays (1.6 ± 1.9%, P = 0.032). Bone ingrowth in both designs was highest in the initial 500 μm from the surface.

The purpose of the present study was to determine the short-term results of a tantalum porous coated hemispherical acetabular component supported with a modular tantalum augment in Paprosky type IIIa defects. A total of 28 patients (28 hips) were treated for a type IIIa acetabular defect between 2001 and 2003 with the use of a trabecular metal ...

Modular porous tantalum implants are highly osteointegrative, and the availability of bone stock augments increases the versatility of this system. MATERIAL AND METHODS: The study group consisted of 20 patients (21 hips) who underwent a revision hip arthroplasty using Trabecular Metal acetabular revision system.

Thirty-eight consecutive revision knee arthroplasties were followed for a median follow-up period of 7 (4.5–9) years. Type 2 and 3 defects were treated with metal augments, tantalum cones and modular cementless stems. Patients were assessed using the IKS knee and function scores and the HSS score.

IntroductionAcetabular revision with associated bone loss in uncontained defects can be difficult. We report preliminary results utilising a novel technique, combining tantalum-augments with allogr...

Tantalum revision cups stable at two years, even in type 3 defects No cups loosened, but 5.2% of cups required reoperation. Longer follow-up should reveal the natural course of minor ...

Date Document revision Description of changes April 2021 A00 v1.30.00—Updates for new features and enhancements May 2021

The Trabecular Metal Modular Acetabular Revision System (TMARS) has the flexibility to combine various size and style implants and augments for intraoperatively, enabling more efficient case management and execution in the O.R., relative to what other implant systems can offer. 5-8 Important time savings is realized before and during surgery.

The purpose of this study was to determine the midterm clinical outcomes, fixation as evaluated radiographically, and survivorship of tantalum femoral cones used during revision TKAs in patients with severe femoral bone loss. METHODS From 2003 to 2011, 159 tantalum metaphyseal femoral cones were implanted in 157 patients at a single institution.

The operations are performed at the Department of Planned Elective Surgery Z, Gentofte Hospital by two experienced TKA surgeons that will be included in the research group. During surgery a minimum of 4 Tantalum markers (0.8 mm) is inserted in the bone of the proximal tibia and 6 markers are inserted in the polyethylene insert.

Schmitz et al. used porous tantalum cones in 44 patients and followed up for 37 months. the average preoperative KSS improved from 34 points (range, 6–90 points) to 63 points (range, 7–90 points) (Fig. 9) 39. The VAS improved from 7.5 to 4.8. Only 2 patients required a re‐revision due to aseptic loosening.

The overall revision rate for the 769 acetabular revisions with augments was 5.7% (46 cases) at mean mid-term follow-up. The most common reasons for revision were dislocation (3.3% ...

Tantalum implants offer a wide array of options ranging from non-modular to modular acetabular components and augments of various sizes and shapes. The non-modular tantalum components offer the flexibility of placing the screws through the metal itself rather than through preexisting holes to obtain purchase in the best available bone stock.

Introduction Recent studies have reported short-term favourable results of tantalum-made components in acetabular revisions with bone loss. However, there is a lack of information regarding the mid to long-term results of such components. Objectives The objective of this study was to analyse the outcome and survivorship of acetabular revision hip arthroplasty using tantalum components for ...

Highly porous tantalum cones were also developed to address the weaknesses of structural allograft and have been used in revision TKA . The high porosity of tantalum and its scaffolding abilities for osteoblastic activity enables bone ingrowth and makes it a suitable material for these augments (6,9,22,34). Tantalum cones are often inserted ...

12%Large 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 metal shell. Three patients died before completing the minimum 24 months followup while the remaining 34 were …

Purpose Durable fixation may be difficult to achieve when significant bone loss is present, as it occurs in pelvic sarcoma resection and revision surgery of tumor implants. Purpose of this study was to review clinical results of primary and revision surgery of the pelvis and lower extremity in the setting of severe bone loss following limb salvage procedures for bone sarcoma using modular ...

Early reports with the porous tantalum revision shell with and without the use of tantalum augments, have shown excellent results regarding osseointegration and stability of the components as well ...

Trabecular metal cone Interlocking revision stem Introduction We report the case of a 55-year-old patient who required a rerevision TKA with severely compromised left distal femoral and As the population ages and the use of total knee arthroplasty proximal tibial bone stock following four prior arthroplasty pro- (TKA) in younger patients ...

The highly porous tantalum implants were of 2 different designs: (1) a more rigid modular design with an inner titanium core (Trilogy Trabecular Metal Modular, Zimmer Inc) and (2) a nonmodular revision design composed entirely of porous tantalum with an attached peripheral titanium ring to facilitate insertion (Trabecular Metal Revision, Zimmer ...

Modular tantalum augments for acetabular defects in revision hip arthroplasty Clin Orthop Relat Res. 2009 Jan;467(1):199-205. doi: 10.1007/s11999-008-0549-0. …

The cementless acetabular implants are commonly used in primary and revision hip arthroplasty. Reconstruction of acetabulum in case of bone defects can be challenging. The aims of this single center study are to review the mid-term outcomes of porous tantalum cups (TM) and evaluate complications. The midterm outcome of a trabecular metal tantalum modular uncemented cup was …

The hypothesis was that modular augmentation provides a good survivorship of knee revisions. Thirty-eight consecutive revision knee arthroplasties were followed for a median follow-up period of 7 (4.5–9) years. Type 2 and 3 defects were treated with metal augments, tantalum cones and modular cementless stems.

Hip Arthroplasties Using Porous Tantalum Modular Acetabular Components: 5-Year Follow-up of Clinical Trial. Modern Rheumatology. 23(1): 112–118, 2013. 9. Simon, J.P., et al. Clinical and Radiological Evaluation of Modular Trabecular Metal Acetabular Cups- Short-Term Results in 64 Hips. Acta Orthop Belg. 75: 623–630, 2009. 10.

Severe Acetabular Revision: A Modular Approach. Porous tantalum modular augments combined with trabecular metal acetabular components can be used effectively in reconstructing failed THA with severe acetabular bone loss. Its material properties and unique structure allow for increased structural stability and promote biologic fixation.

A porous tantalum elliptical acetabular component was used alone or with an associated modular porous tantalum augment in all patients. Three patients died and five were lost to followup before 2 years. ... At latest followup, the average improvement in the patients not requiring rerevision using the modified Merle d'Aubigné-Postel score was 6 ...

Modular Tantalum Augments for Acetabular Defects in Revision Hip Arthroplasty Alexander Siegmeth, MD, 1 Clive P. Duncan, MD, MSc, 2 Bassam A. Masri, MD, 2 Winston Y. Kim, MBChB, 3 and Donald S. Garbuz, MD, MHSc 2

Mechanical testing was performed to failure using a servohydraulic testing machine. The porous tantalum designs exhibited superior stability over the traditional cementless implant (P < .05). There was no difference in mechanical stability between the rigid modular tantalum shell and the more flexible revision tantalum shell (P > .46).

Large 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 …

In our study, risk of rerevision for any cause or for infection did not differ between the porous tantalum group and the uncemented control group. Results have been reported in which rerevision rates after acetabular revision with the porous tantalum cup have been lower compared with the results of other uncemented revision cup designs .

Nehme A, Lewallen D, Hanssen A. Modular 2. 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 …