E1 Antioxidant Infused Technology

E1 Antioxidant Infused Technology is the first polyethylene to address the limitations associated with both annealing and remelting.^1-4

Never remelted: E1 Antioxidant Infused Technology maintains greater fatigue strength than first generation remelted HXLPE. ^5-7

Never annealed: E1 Antioxidant Infused Technology maintains greater oxidation protection than sequentially cross-linked and annealed HXLPE after an environmental stress cracking study. ⁵

E1 protects against oxidation using a patented method to infuse the polyethylene with the natural antioxidant power of Vitamin E.⁸ 

Formed from the same isostatic compression moulded bar stock used for  clinically proven ArCom, E1 Antioxidant Infused Technology is unlike any other polyethylene currently available.

 

References:

¹Halley, D. et al. Recurrent Dislocation After Total Hip Replacement with a Large Prosthetic Femoral Head. Journal of Bone and Joint Surgery. 86-A(4): 827– 30, 2004.
²Bhattacharyya, S. et al. Severe In Vivo Oxidation in a Limited Series of Retrieved Highly-Crosslinked UHMWPE Acetabular Components with Residual Free Radicals. Paper No. 0276. ORS San Francisco, CA. March 2004.
³Currier, B.H. et al. Crossfire Retrievals—What Can We Learn? Paper No. 1182. ORS. Washington D.C. March 2005.
⁴Ries, Michael D. Effect of Cross-linking on the Microstructure and Mechanical Properties of Ultra-high Molecular Weight Polyethylene. Clinical Orthopaedics and Related Research. (440):149–156, 2005.
⁵Biomet Biomaterials Laboratory ‘The revolutionary second generation vitamin E stabilsed highlycrosslinked UHMWPE’ Jan 2007
⁶Wannomnnomae, K. Environmental Stress Cracking of Two-Tocopherol Doped, Irradiated UHMWPEs and Two Contemporary UHMWPEs. Report Provided by the Orthopaedic Biomechanics and Biomaterials Laboratory at Massachusetts General Hospital. January 12, 2007.
⁷Bhambri, S. et al. The effect of aging on mechanical properties of melt-annealed highly crosslinked UHMWPE. Crosslinked and Thermally Treated Ultra-High Molecular Weight Polyethylene for Joint Replacements. 171–82, 2004.
⁸Muratoglu, O. et al. Wear Resistance and Mechanical Properties of Highly Cross-Linked, Ultrahigh-Molecular Weight Polyethylene Doped With Vitamin E. The Journal of Arthroplasty. 21(4): 580–591, 2006