Long-term Results of a First-Generation Annealed Highly Cross-Linked Polyethylene in Young, Active Patients

Orthopedics
Chitranjan S RanawatMorteza Meftah

Abstract

The survivorship of total hip arthroplasty in younger patients is dependent on the wear characteristics of the bearing surfaces. Long-term results with conventional polyethylene in young patients show a high failure rate. This study assessed the long-term results of a first-generation annealed highly cross-linked polyethylene (HCLPE) in uncemented total hip arthroplasty in young, active patients. Between 1999 and 2003, 112 total hip arthroplasty procedures performed in 91 patients with an average University of California Los Angeles activity score of 8 and mean age of 53 years (range, 24-65 years) were included from a prospective database. In all patients, a 28-mm metal femoral head on annealed HCLPE (Crossfire; Stryker, Mahwah, New Jersey) was used. At minimum 10-year follow-up (11.5±0.94 years), Kaplan-Meier survivorship was 97% for all failures (1 periprosthetic infection and 1 late dislocation) and 100% for mechanical failure (no revisions for osteolysis or loosening). This study showed low revision rates for wear-related failure and superior survivorship in young, active patients. Oxidation causing failure of the locking mechanism has not been a problem with Crossfire for up to 10 years.

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Jul 19, 2016·Morphologie : Bulletin De L'Association Des Anatomistes·P Massin, S Achour
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Nov 3, 2020·Revista Brasileira De Ortopedia·Guilherme Guadagnini FaloticoEdmilson Takehiro Takata
Jul 26, 2021·The Journal of Arthroplasty·Paul N KarayiannisDavid E Beverland

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