Highly cross linked polyethylene liners have better wear properties in hip arthroplasty .
The seven-year wear of highly cross-linked polyethylene in total hip arthroplasty: A double-blind, randomized controlled trial using radiostereometric analysis
J Bone Joint Surg Am. 2011 Apr 20;93(8):716-22.54 patients with symptomatic hip arthritis undergoing hip replacements, receiving a cemented, collarless, polished, tapered femoral component (CPT; Zimmer) and an uncemented acetabular component (Trilogy; Zimmer) were randomized to receive either conventional ultra-high molecular weight polyethylene acetabular liners (Zimmer) or highly cross-linked polyethylene liners (Longevity; Zimmer). The results from this study indicated that Highly cross-linked polyethylene have a significantly lower steady-state wear rate compared with that of conventional ultra-high molecular weight polyethylene.
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