Wear comparison between a highly cross-linked polyethylene and conventional polyethylene against a zirconia femoral head: minimum 5-year follow-up.
prospective_cohort · Level II
Where this comes from
- Record sourced from PubMed, PMID 20097032.
- Also identified by DOI 10.1016/j.arth.2009.11.005.
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Abstract
Highly cross-linked polyethylene (HXLPE) was developed to reduce wear of articular bearing surface in total hip arthroplasty patients. Several studies have shown reduced wear of HXLPE compared with conventional polyethylene; however, these studies had used HXLPE in combination with a Co-Cr metal head. The purpose of this study was to compare the 5-year in vivo wear of HXLPE with that of conventional PE using a zirconia femoral head. Forty-five hips with a Trilogy HXLPE (Zimmer, Warsaw, Ind) were matched and compared with a control group of 20 conventional Trilogy PE hips. The 2-dimensional linear wear rate was significantly less in the HXLPE group between 1 and 5 years postoperation (P < .001). The results show that HXLPE reduces short-term polyethylene wear against not only a Co-Cr head but also a zirconia head.
Medical subject headings
- Arthroplasty, Replacement, Hip
- Hip Prosthesis
- Osteoarthritis, Hip
- Polyethylenes
- Zirconium
Anatomy
- femur
- hip