Comparing the Science of Wear in Knee Articulating Surfaces

Do you have all the facts?

Smith & Nephew (S&N) claims that testing in simulated abrasive conditions demonstrated a 90% reduction in polyethylene wear with Oxinium compared to cobalt-chromium alloy (CoCr). Read the Science Fact
S&N claims that another test “in clean conditions” demonstrated an 85% reduction in polyethylene wear with Oxinium compared to CoCr “even though abrasive wear was not intentionally created.” Read the Science Fact
In claiming that Oxinium significantly reduces volumetric wear compared to CoCr, S&N implies that volumetric wear is the most important wear-related factor for knee implants. Read the Science Fact
S&N claims that Oxinium “does not contain nickel,” and “is the best choice in knee replacement materials for patients who exhibit metal allergies.” S&N also claims that 3%-8% of the population has metal sensitivity to the nickel found in orthopaedic implants. Read the Science Fact

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