Vivacit-E® Vitamin E Highly Crosslinked Polyethylene

Vivacit-E® Vitamin E Highly Crosslinked Polyethylene
Designed to meet the long-term performance needs of high-demand patients, Vivacit-E builds on the legacy of Longevity® Highly Crosslinked Polyethylene with more than 13 years of clinical success.1
- Benefits
- Exceptional Oxidative Stability
It’s widely accepted that oxidation is a primary aging mechanism of polyethylene, which can lead to osteolysis and implant failure. The oxidative stability of Vivacit-E HXPE is the result of a proprietary process that grafts (locks) vitamin E directly to the polyethylene chain.4,5,6,7
The vitamin E continuously stabilises the material to prevent oxidative degradation of the polyethylene. When subjected to accelerated aging for 33 weeks (16 times the industry standard), Vivacit-E HXPE showed no signs of oxidation or significant decline in mechanical properties.3
- Improved Strength
Antioxidant protection eliminates the need to remelt the polyethylene, leading to an improvement in strength in comparison to highly crosslinked polyethylene.8
The vitamin E in Vivacit-E HXPE prevents oxidation, resulting in mechanical strength that is retained after accelerated aging for more than 16 times the 2-week industry standard test according to ASTM F2003.3,8,9
- Ultra-low Wear
In tests on two week-aged 40mm articulation size Vivacit-E liners and Longevity liners, Vivacit-E liners showed ultra-low wear rates comparable to Longevity liners.10