Highly cross-linked polyethylene (XLPE) liners linked to increased THA implant survival compared to UHMWPE

According to a study published in the Oct. 18, 2017, issue of The Journal of Bone & Joint Surgery, use of highly cross-linked polyethylene (XLPE) liners may be associated with greater implant survival rates compared to conventional bearing surfaces for total hip arthroplasty (THA) patients. 

The authors conducted a prospective, double-blind, randomized, controlled trial of 91 patients who received implants with either conventional ultra-high molecular weight polyethylene (UHMWPE) bearing surfaces or an XLPE liner. At 10-year follow-up, they found that 3-dimensional wear rates were significantly lower in the XLPE cohort compared to the UHMWPE cohort. In addition, prevalence of osteolysis and revision rates were also significantly lower in the XLPE group compared to the UHMWPE. They noted no significant difference in the clinical scores across cohorts. Learn more...