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Zimmer Biomet
Trabecular Metal™ Tibial Tray

Trabecular Metal™ Tibial Tray

Product catalog summary

Adaptable Modular Design
The Zimmer NexGen Trabecular Metal Tibial Tray offers a modular design that allows for the use of NexGen CR or LPS-Flex fixed-bearing articular surfaces, available in sizes from 10mm to 17mm. This design facilitates the replacement of the articular surface without needing to revise a well-fixed tibial tray, enhancing long-term stability through better coverage of the proximal tibia.

Minimally Invasive Solutions
The low-profile tray is designed to accommodate minimally invasive procedures, resulting in smaller incisions, reduced blood loss, and less pain. The instrumentation supports accurate and repeatable bone cuts.

Trabecular Metal Technology
This technology provides stable initial fixation with properties similar to bone, preventing stress shielding and lift-off. It is used in conjunction with Prolong Highly Crosslinked Polyethylene, which increases resistance to delamination and wear.

Design Features
The tray includes hexagonal pegs that engage areas of high tibial bone density for secure fixation. The central boss is coated in Trabecular Metal Material to maximize ingrowth potential. The modular design supports both conventional and Prolong Polyethylene articular surfaces.

High-Flexion Capability
A locking screw anchors the 17mm flex articulating surfaces to the tibial tray, aiding in restoring natural knee kinematics and allowing active flexion up to 155°.

Testing and Performance
The device's fatigue strength is approximately 25% higher than previous designs. The lift-off test showed significantly less lift-off compared to other components, enhancing bony ingrowth opportunities. Load sharing tests indicate similar characteristics to established designs, ensuring effective stress distribution.

Conclusion
The Zimmer NexGen Trabecular Metal Tibial Tray combines advanced materials and modular design to improve fixation, stability, and patient outcomes in knee arthroplasty.

Catalog excerpts

Zimmer® ® NexGen® Trabecular Metal™ Tibial Tray ® Give bone a solid h

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A New Joint Venture-Trabecular Metal Technology Plus Modularity The Trabecular Metal Tibial Tray unites stable fixation with modular components to meet a growing demand for knees implanted through mini-arthrotomies. With physical and mechanical properties similar to bone, Trabecular Metal Technology achieves stable initial fixation and helps prevent stress shielding and lift-off. The separate articulating surface is available in Prolong® Highly Crosslinked Polyethylene, which substantially increases delamination and wear resistance.1 And the modular components work with the Zimmer® Minimally Invasive...

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Trabecular Metal Technology enhances key fixation interfaces, with or without bone cement Modular design allows for use of both conventional and Prolong Polyethylene articular surfaces Hexagonal pegs engage the best bone to improve fixation The central boss for a lock down screw, is coated in Trabecular Metal Material to maximize ingrowth potential Low profile tray accommodates minim invasive procedures, returning patients to their desired lifestyle more quickly HiGH-FLEXiON • A locking screw anchors the 17mm flex articulating surfaces to the tibial tray. • Helps restore natural knee kinematics...

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Testing Data cantilever fatigue strength tEST The fatigue strength of this device is approximately 25% higher than the design requirement established by the MG II® Precoat Stemmed Tibial Tray which has been in use since 1989. 120% NexGen Stemmed Tibia Plate Natural-Knee® asymmetric base plate NexGen Trabecular Metal Tibial Tray NexGen Four Pegged Tibial Tray Trabecular Metal Monoblock Tibia LOAD SHARING TEST NexGen Trabecular Metal Tibial Tray MG II Precoat Stemmed Tibial Tray Normalized Fatigue Strength Test LIFT-OFF TEST The results showed that the average maximum lift-off for the NexGen Trabecular...

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