Sigma®CoCr (Cobalt Chrome)
One of the best ways to meet the needs of today’s more demanding patients is by offering them a clinically successful, state-of-the-art knee solution. The one-piece, modular construct of our Cobalt Chrome Tray is an excellent example of a proven design made even better by utilizing advanced materials. The highly polished surface provides an environment that is more polyethylene-friendly than a rough titanium tray to minimise abrasion and increase long term durability. The CoCr Tray also provides a secure fit, decreasing micromotion while maintaining the system's modularity.
A proven entity improved1
Providing the benefits of a two-piece tibial construct that approaches the performance of a one-piece design is a DePuy advantage. We uniquely address the three major factors that cause wear in a fixed-bearing knee design. By optimizing the tray, the locking mechanism, and the polyethylene, we deliver a construct you desire for your patients.
FEATURES & BENEFITS:
FEATURES & BENEFITS:
- Highly polished surface tibia component reducing the wear by 64% against the Titanium trays.
- Maintains the shape, thickness, design and features of the clinically proven tibia design.
- Reduced Anterior / Posterior motion due to anterior bumper.
- Reduced micromotion due to tighter peripheral fit within the tray.
1 The Influence of Tibial Tray Modularity, Surface Finish & Micromotion on TKA Wear; Donald
McNulty, MS ; Steve Swope, MD; AAOS 2008 Posters Arthroplasty Knee 75th Annual Meeting
Proceedings, Poster 192, ( page 493)