TrabecuLink Augments

At a glance

Versatility – in positioning the Augment
Effective fixation - pore geometry of the TrabecuLink structure for effective cell ongrowth^2,3,5
Reproducible surgical technique

The latest material and fixation technologies have been taken into account and used in the design of the TrabecuLink Augments.

The TrabecuLink Augments offer an attractive solution in cases of segmental acetabular defects as a prosthetic alternative to structural allograft. The biocompatible material Tilastan-E¹ and the TrabecuLink structure offer an excellent prerequisite for a stable and permanent treatment of bone defects.
Furthermore, 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) ^2,3.

The Augments can be combined with all Link cups, in particular with the MobileLink cup, which has variable options for placing bone screws, as the Augment design allows flexibility to put bone screws through shell and Augment.
In case of acetabular defects the combination of a LINK shell with TrabecuLink Augments can be the solution to help conserve the natural patient anatomic and kinematics.
The Augment size range allows good fit for different anatomies and defects.

Versatility

The Augment size range allows good fit for different anatomies and defects
Variable bone screw angulation/options
The Augment design allows flexibility to put bone screws through shell and Augment – big recesses allow for great variability in positing the Augment
Low Augment profile
Augments can be used upside down as buttresses

Effective fixation

Sufficient grip of Augments. Augments have a great primary stability
Pore geometry of the TrabecuLink structure for effective cell ongrowth^2,3,5
Great connection between shell and Augment by application of cement mantle (according to surgical technique) ⁴

Reproducible surgical technique

The Augment forceps helps to place the Augment
Temporary fixation of trial Augment and final Augment by drill pins through pin holes - pins which hold trial Augments in place help to position final implant
Small inventory

TrabecuLink

3-dimensional structure – for optimal bone ongrowth

Pore geometry (porosity: 70%, pore size: 610-820 μm, structure depth: up to 1 mm) ensures excellent cell ongrowth ^2,3,5

Pore filling

The sequence of images shows a pore of the TrabecuLink structure being filled with tissue under in-vitro cell culture conditions. The fibronectin laid down by human fibroblasts and continually reorganized over a period of eight days is visible as green fibers. Fibronectin is a component of the extracellular matrix that is formed at an early stage of the healing process. It forms a basis for the embedding of collagen, which is essential for mineralization of the tissue and ingrowth of bone into the structure. Apart from the accumulation of fibronectin, which increases over time, a clear contraction of the matrix towards the center of the pore can be observed. This contraction mechanism, which is attributable to the cellular forces acting in the tissue, accelerates the rate at which the pore is filled with tissue, compared to a layer-by-layer tissue growth (Reference: Joly P et al., PLOS One 2013;
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0073545). Julius Wolff Institute, Charité - Universitätsmedizin Berlin

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