The Klassic® Femur with Aurum® Technology features the same patented geometry and articulation as the Klassic® Femur and offers a revolutionary ballistically bonded titanium nitride (TiN) surface to provide a premium implant without the deliberate addition of common metal sensitizers such as nickel, cobalt, and chromium.
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Aurum® uses a proprietary process to ballistically bond a five-micron thick titanium nitride coating to the titanium substrate. The result is a hardened surface that offers exceptional wear characteristics without cobalt chrome.11
Because the Aurum® IBED process is a physical process and not a chemical or thermal process, the temperature during bonding is below 400ºF. Ion beam enhanced deposition application utilizes kinetic energy versus heat, so the coating environment maintains a much lower temperature, preserving the integrity of TiN’s strength and hardness.
The Klassic® Femur with Aurum® Technology demonstrated equivalent fatigue strength to the traditional CoCr Klassic® Femur at 10,000,000 cycles of loading.13
The Aurum® process offers significantly improved wear-resistance, abrasion-resistance, and surface hardness when compared to cobalt chrome. Mode I wear testing was performed on pristine Aurum® and cobalt chrome femurs against conventional polyethylene (UHMWPE) to 5,000,000 cycles. The femurs were then scratched with sandpaper and run for an additional 3,500,000 cycles. Aurum® Femurs showed significantly less wear than cobalt chrome (CoCr)
femurs under Mode III wear testing.12
Increased surface hardness makes Aurum® implants more resistant to scratches and wear than cobalt chrome.
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