Why are total knee arthroplasties being revised?

David F. Dalury, Donald L. Pomeroy, Robert S. Gorab, Mary Jo Adams

Research output: Contribution to journalArticlepeer-review


Despite technical improvements, revision rates for total knee arthroplasties (TKAs) remain high. Our goal was to report the reason(s) for revision TKA in a large, current, multicenter series and compare those reasons with previously published reasons. We retrospectively identified 820 consecutive revision TKAs (693 patients, 2000-2012) from our 3 centers and recorded the primary reason for the revision. The top seven reasons for the revision were aseptic loosening (23.1%), infection (18.4%), polyethylene wear (18.1%), instability (17.7%), pain/stiffness (9.3%), osteolysis (4.5%), and malposition/malalignment (2.9%). Comparison with previously published reasons showed fewer TKA revisions for polyethylene wear, osteolysis, instability, and malalignment. These changes may represent improvements in surgical technique and implants.

Original languageEnglish (US)
Pages (from-to)120-121
Number of pages2
JournalJournal of Arthroplasty
Issue number8 SUPPL
StatePublished - Sep 2013


  • Current
  • Diagnosis
  • Knee arthroplasty
  • Outcome;
  • Revision total knee arthroplasty

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine


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