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WOMAC, EQ-5D and Knee Society Score Thresholds for Treatment Success After Total Knee Arthroplasty

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  • Johannes M Giesinger
  • David F Hamilton
  • Bernhard Jost
  • Henrik Behrend
  • Karlmeinrad Giesinger

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Original languageEnglish
JournalJournal of Arthroplasty
Early online date14 Jun 2015
Publication statusPublished - 2015


Our study aimed at developing clinical thresholds (cut-off scores) for the Western Ontario and McMaster Universities (WOMAC) osteoarthritis index, EQ-5D and Knee Society Score for discriminating between patients with and without treatment success following total knee arthroplasty (TKA). We performed a retrospective analysis of 1055 patients 2months after TKA and 765 patients 1year after TKA. We considered treatment successful if the patient reported high levels of satisfaction and pain relief, functional increase, and a willingness to undergo the same procedure again. Based on this criterion we identified cut-off scores that will facilitate interpretation of the WOMAC, the EQ-5D and the KSS in TKA patients.

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