Sprache

TrabecuLink® Tibial Cones

  • Stable – with cementless fixation

  • Elastic – due to integral bending axes in the inner metal wall

  • Versatile – for a broad range of solutions 7

More Information

The dynamic LINK® Tibial Cones are an attractive solution for cementless restoration of bone defects10 and to provide additional support for the prosthesis if there is bone loss in the proximal tibia. The combination of the dynamic design5,6 of the cones and the biocompatible material Tilastan®– E11,12 is ideal for ensuring stable, long-lasting fixation and successful bone regeneration.
The 3-dimensional TrabecuLink® structure, with its pore size, porosity and structure depth, also provides an excellent basis for promoting osteoconduction and microvascularization, taking into account the requirements for the structure-covering protein layer (fibronectin - vitronectin - fibrinogen).1,2
Tibial Cones can be used in combination with the long-established LINK® Endo-Model® knee family in a wide range of sizes and versions. The choice of sizes corresponds to the dimensions of the hinged knee prostheses.

Stable – in metaphyseal fixation 9,13

  • Reinforcement of the bone structure in cases of tibial, metaphyseal bone defects
  • High primary stability in the metaphyseal region, both for the cone itself and for the tibial component cemented in the cone
  • Cementless interface with the bone for bone regeneration

Elastic – due to integral bending axes in the inner metal wall

  • Mechanical compression promotes bone regeneration 5,6
  • Bending axes for adaptation to bone surfaces: oriented vertically in the cone
  • Good fit ensured by structural elasticity, which also facilitates insertion of the tibial cones
  • Spring effect for easier intraoperative positioning
Example of a patient-specific custom-made implant

Versatile – for a broad range of solutions 7

  • Can be combined with all the tibial components of the LINK® Endo-Model® knee family
  • Sizes correspond to the sizes of the hinged knee prostheses
  • Customized models can be manufactured

Design and Features

TrabecuLink®
3-dimensional structure – for optimal bone ongrowth

  • Pore geometry (porosity: 70%, pore size: 610-820 μm, structure depth: 2 mm) ensures excellent cell ongrowth 1,2,4

TrabecuLink® Tibial Cones for use with Endo-Model® tibial components standard and modular version, Material: Tilastan®– E (TiAl6V4)

Pore Filling

The sequence of pictures shows the pore fill of the TrabecuLink® structure under in vitro cell culture conditions. The green fibers are human fibroblastic fibronectin continually organised over a period of eight days. Fibronectin is a component of extracellular matrix that is composed early in wound healing. It is a precursor for incorporation of collagen which in turn is essential for tissue mineralisation and osseointegration. Besides the continually increasing quantity of fibronectin there is clearly a concentration of the matrix towards the center of the pore to be observed. This tissue mechanism of concentration of cell activities accellerates the pore filling in comparison to layer-by- layer tissue growth. (Reference: Holy et al., PLOSone 2013; https://doi.org/10.1371/journal.pone.0073545).

Julius Wolff Institut, Charité - Universitätsmedizin Berlin

 

 

 

Additive manufacturing process for latest generation of Tibial Cones


References

  1. Cecile M. Bidan, Krishna P. Kommareddy, Monika Rumpler, Philip Kollmannsberger, Yves J.M. Brechet, Peter Fratzl, John W.C. Dunlop. et al.; How Linear Tension Converts to Curvature: Geometric Control of Bone Tissue Growth; PLoS ONE 7(5): e36336. doi org/10.1371/journal.pone.0036336 (2012)
  2. Pascal Joly, Georg N. Duda, Martin Schöne, Petra B. Welzel, Uwe Freudenberg, Carsten Werner, Ansgar Petersen, et al.; Geometry-Driven Cell Organization Determines Tissue Growth in Scaffold Pores: Consequences for Fibronectin Organization; PLoS ONE 8(9): e73545. doi.org/10.1371/journal.pone.0073545 (2013)
  3. Dr. Malte Drobe, Franziska Killiches; Vorkommen und Produktion mineralischer Rohstoffe – ein Ländervergleich; Bundesanstalt für Geowissenschaften und Rohstoffe Hannover; http://www.bgr.bund.de/DE/Themen/Min_rohstoffe/Downloads/studie_rohstoffwirtschaftliche_einordnung_2014.pdf?__blob=publicationFile&v=4 (2014)
  4. Steinemann SG; Compatibility of Titanium in Soft and Hard Tissue – The Ultimate is Osseointegration; Materials for Medical Engineering, WILEY-VCH, Volume 2, Page 199-203
  5. Gerald Küntscher; Praxis der Marknagelung; Friedrich-Karl Schattauer-Verlag (1962)
  6. R. Texhammer, C. Colton et al.; AO-Instrumente und Implantate (Technisches Handbuch); Springer Verlag, 2. Auflage, S.25 (2011)
  7. Gabriele Panegrossi, corresponding author Marco Ceretti, Matteo Papalia, Filippo Casella, Fabio Favetti, and Francesco Falez; Bone Loss Management in Total Knee Revision Surgery; Int Orthop. 2014 Feb; 38(2): 419–427; www.ncbi.nlm.nih.gov/pmc/articles/PMC3923937/ (2014)
  8. Conflict Minerals: MEPs Secure Mandatory Due Diligence for Importers; Press release - External/international trade − 22-11-2016 - 19:07; www.europarl.europa.eu/news/en/news-room/20161122IPR52536/conflict-minerals-meps-secure-mandatory-due-diligence-for-importers (2016)
  9. Henricson A, Linder L, Nilsson KG.; A Trabecular Metal Tibial Component in Total Knee Replacement in Patients Younger than 60 Years: a Two-year Radiostereophotogrammetric Analysis; J Bone Joint Surg Br. 2008;90:1585–1593. doi: 10.1302/0301-620X.90B12.20797 (2008)
  10. P. K . Sculco, M. P. Abdel, A. D. Hanssen, D. G. Lewallen; The Management of Bone Loss in Revision Total Knee Arthroplasty; Bone Joint J 2016;98-B(1 Suppl A):120–4 (2016)
  11. Peter Heinl, Lenka Müller, Carolin Körnera, Robert F. Singera, Frank A. Müllerb; Cellular Ti–6Al–4V Structures with interconnected Macro Porosity for Bone Implants Fabricated by Selective Electron Beam Melting; Acta Biomaterialia Volume 4, Issue 5, September 2008, Pages 1536–1544 (2008)
  12. Hong Wang, Bingjing Zhao, Changkui Liu, Chao Wang, Xinying Tan, Min Hu; A Comparison of Biocompatibility of a Titanium Alloy Fabricated by Electron Beam; PLOS ONE | DOI:10.1371/journal.pone.0158513 July 8 2016, (2016)
  13. Ivan De Martino, Vincenzo De Santis, Peter K Sculco, Rocco D’Apolito, Joseph B Assini, Giorgio Gasparini; Tantalum Cones Provide Durable Mid-Term Fixation in Revision TKA; Clin Orthop Relat Res 473 (10), 3176-3182 (2015)

This area is intended exclusively for medical professionals and, in accordance with the German Advertising of Medicines Act (HWG), must only be made available to certain professional personnel.

Yes, I am a medical professional No, I am not a medical professional