Long-Term Outcome of Surface Replacement With Comparison to an Age- and Time-Matched Primary Total Hip Arthroplasty Cohort

Russell D. Meldrum, G. Peter Maiers, Judy R. Feinberg, J. Andrew Parr, William N. Capello, Justin J. Park

Research output: Contribution to journalArticle

5 Scopus citations


Surface replacement (SR) was introduced as a bone-conserving alternative to total hip arthroplasty (THA) 3 decades ago, then was abandoned due to polyethylene wear, stress shielding, and loosening. Improved bearing surfaces have renewed interest in SR. This study examined long-term SR outcome compared to an age- and time-matched THA cohort. Average age was 47 years at index procedure with 16 years follow-up (range, 5-28). Revision rates were 86% and 40% in SR and THA groups, respectively. However, at 20 years, with an end point of either intact SR or primary THA in the SR group, survivorship was 64% ± 6% versus 39% ± 7% unrevised in THA cohort. Contemporary and rapidly changing technology may result in longer-term SR success and improved THA longevity in young patients.

Original languageEnglish (US)
Pages (from-to)1-9
Number of pages9
JournalJournal of Arthroplasty
Issue number1
StatePublished - Jan 1 2008



  • long-term outcome
  • surface replacement
  • total hip arthroplasty
  • young patients

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

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