AAOS2019: Comparison of 7yr wear between vit E-diffused HXLPE and moderate XLPE liners in THA .
Seven-Year Evaluation of Vitamin E Diffused Highly Crosslinked Polyethylene: A Randomized Controlled Trial Using Radiostereometric Analysis
67 patients scheduled for total hip arthroplasty were randomized to receive either a vitamin E-diffused highly-crosslinked polyethylene liner or moderately-crosslinked polyethylene liner. Patients were assessed for total wear and steady state wear over 7 years using radiostereometric analysis. Results demonstrated a non-significant difference between groups in total wear after 7 years, though steady state wear (ie. wear occurring beyond 1-year follow-up to control for bedding-in) was significantly lower in the VEPE group. Patient-reported measures of hip function and quality-of-life did not significantly differ between groups at 7 years.
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