Comparative responsiveness of outcome measures for total knee arthroplasty.
- Giesinger K Department of Orthopaedic Surgery, Kantonsspital St. Gallen, Rorschacherstrasse 95, CH-9000 St. Gallen, Switzerland. Electronic address: karlmeinrad.giesinger@kssg.ch.
- Hamilton DF Department of Orthopaedic Surgery, University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SA, UK. Electronic address: d.f.hamilton@ed.ac.uk.
- Jost B Department of Orthopaedic Surgery, Kantonsspital St. Gallen, Rorschacherstrasse 95, CH-9000 St. Gallen, Switzerland. Electronic address: bernhard.jost@kssg.ch.
- Holzner B Department of Psychiatry and Psychotherapy, Innsbruck Medical University, Anichstr. 35, A-6020 Innsbruck, Austria. Electronic address: bernhard.holzner@uki.at.
- Giesinger JM Department of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands. Electronic address: johannes.giesinger@i-med.ac.at.
- 2013-11-23
Published in:
- Osteoarthritis and cartilage. - 2014
Forgotten joint score
Knee arthroplasty
Patient-reported outcome
Responsiveness
WOMAC score
Aged
Aged, 80 and over
Arthroplasty, Replacement, Knee
Female
Follow-Up Studies
Humans
Knee Joint
Male
Middle Aged
Outcome Assessment, Health Care
Patient Satisfaction
Prospective Studies
Range of Motion, Articular
Recovery of Function
Severity of Illness Index
Treatment Outcome
English
OBJECTIVE
The aim of this study was to compare the responsiveness of various patient-reported outcome measures (PROMs) and clinician-reported outcomes following total knee arthroplasty (TKA) over a 2-year period.
METHODS
Data were collected in a prospective cohort study of primary TKA. Patients who had completed Forgotten Joint Score-12 (FJS-12), Western Ontario and McMaster Universities (WOMAC) osteoarthritis (OA) index, EQ-5D, Knee Society Score and range of movement (ROM) assessment were included. Five time points were assessed: pre-operative, 2 months, 6 months, 1 year and 2 years post-operative.
RESULTS
Data from 98 TKAs were available for analysis. Largest effect sizes (ES) for change from pre-operative to 2-month follow-up were observed for the Knee Society Score (KSS) Knee score (1.70) and WOMAC Total (-1.50). For the period from 6 months to 1 year the largest ES for change were shown by the FJS-12 (0.99) and the KSS Function Score (0.88). The EQ-5D showed the strongest ceiling effect at 1-year follow-up with 84.4% of patients scoring the maximum score. ES for the time from 1- to 2-year follow-up were largest for the FJS-12 (0.50). All other outcome measures showed ES equal or below 0.30.
CONCLUSION
Outcome measures differ considerably in responsiveness, especially beyond one year post-operatively. Joint-specific outcome measures are more responsive than clinician-reported or generic health outcome tools. The FJS-12 was the most responsive of the tools assessed; suggesting that joint awareness may be a more discerning measure of patient outcome than traditional PROMs.
The aim of this study was to compare the responsiveness of various patient-reported outcome measures (PROMs) and clinician-reported outcomes following total knee arthroplasty (TKA) over a 2-year period.
METHODS
Data were collected in a prospective cohort study of primary TKA. Patients who had completed Forgotten Joint Score-12 (FJS-12), Western Ontario and McMaster Universities (WOMAC) osteoarthritis (OA) index, EQ-5D, Knee Society Score and range of movement (ROM) assessment were included. Five time points were assessed: pre-operative, 2 months, 6 months, 1 year and 2 years post-operative.
RESULTS
Data from 98 TKAs were available for analysis. Largest effect sizes (ES) for change from pre-operative to 2-month follow-up were observed for the Knee Society Score (KSS) Knee score (1.70) and WOMAC Total (-1.50). For the period from 6 months to 1 year the largest ES for change were shown by the FJS-12 (0.99) and the KSS Function Score (0.88). The EQ-5D showed the strongest ceiling effect at 1-year follow-up with 84.4% of patients scoring the maximum score. ES for the time from 1- to 2-year follow-up were largest for the FJS-12 (0.50). All other outcome measures showed ES equal or below 0.30.
CONCLUSION
Outcome measures differ considerably in responsiveness, especially beyond one year post-operatively. Joint-specific outcome measures are more responsive than clinician-reported or generic health outcome tools. The FJS-12 was the most responsive of the tools assessed; suggesting that joint awareness may be a more discerning measure of patient outcome than traditional PROMs.
- Language
-
- English
- Open access status
- hybrid
- Identifiers
-
- DOI 10.1016/j.joca.2013.11.001
- PMID 24262431
- Persistent URL
- https://sonar.ch/global/documents/212792
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