title: WOMAC, EQ-5D and Knee Society Score Thresholds for Treatment Success After Total Knee Arthroplasty.
abstract: 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 2 months after TKA and 765 patients 1 year 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.
authors.affiliation: Department of Psychiatry and Psychotherapy, Medical University of Innsbruck, Innsbruck, Austria.
authors.forename: Johannes M
authors.initials: JM
authors.lastname: Giesinger
authors.affiliation: Department of Orthopaedic Surgery, University of Edinburgh, Edinburgh, UK.
authors.forename: David F
authors.initials: DF
authors.lastname: Hamilton
authors.affiliation: Department of Orthopaedics and Traumatology, Kantonsspital St. Gallen, St. Gallen, Switzerland.
authors.forename: Bernhard
authors.initials: B
authors.lastname: Jost
authors.affiliation: Department of Orthopaedics and Traumatology, Kantonsspital St. Gallen, St. Gallen, Switzerland.
authors.forename: Henrik
authors.initials: H
authors.lastname: Behrend
authors.affiliation: Department of Orthopaedics and Traumatology, Kantonsspital St. Gallen, St. Gallen, Switzerland.
authors.forename: Karlmeinrad
authors.initials: K
authors.lastname: Giesinger
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009864:Ontario; D020370:Osteoarthritis, Knee / Q000175:diagnosis / Q000601:surgery*; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D012720:Severity of Illness Index; D016896:Treatment Outcome
keywords: EQ-5D; Knee Society Score; WOMAC; patient-reported outcome; total knee arthroplasty; treatment success