• J Bone Joint Surg Am · Apr 2021

    Comparative Study

    Incidence of Osteolysis and Aseptic Loosening Following Metal-on-Highly Cross-Linked Polyethylene Hip Arthroplasty: A Systematic Review of Studies with Up to 15-Year Follow-up.

    • Hannah Prock-Gibbs, Cyrus Anthony Pumilia, Teerin Meckmongkol, John Lovejoy, Aadil Mumith, and Melanie Coathup.
    • College of Medicine, University of Central Florida, Orlando, Florida.
    • J Bone Joint Surg Am. 2021 Apr 21; 103 (8): 728-740.

    BackgroundThis study compared the incidence of osteolysis, aseptic loosening, and revision following use of highly cross-linked polyethylene (HXLPE) or conventional polyethylene (CPE) at medium to long-term (>5 to 15 years) follow-up in primary total hip arthroplasty (THA). Incidences were quantified and compared with regard to age and method of implant fixation.MethodsUsing the PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses) guidelines, 12 randomized controlled trials and 18 cohort studies were investigated for evidence-based outcomes following HXPLE and CPE use in 2,539 hips over a 5 to 15-year follow-up.ResultsLower rates of osteolysis, aseptic loosening, and implant revision were reported following use of HXLPE liners. Osteolysis was reduced from 25.4% with CPE to 4.05% with HXLPE in young patients, and from 29.7% to 6.6% in the older patient cohort. Similarities in osteolysis rates were observed when cemented (24.9% for CPE and 6.5% for HXLPE) and uncemented components (32.8% for CPE and 7.1% for HXLPE) were compared. No clear advantage in the type of HXLPE used was observed.ConclusionsOver a follow-up period of up to 15 years, when compared with CPE, use of HXLPE liners reduced the incidence of osteolysis, aseptic loosening, and implant revision, regardless of the fixation method and including in younger and potentially more active patients.Level Of EvidenceTherapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.Copyright © 2021 by The Journal of Bone and Joint Surgery, Incorporated.

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