Combining four patient-reported outcome measurement instruments to develop a common metric computerized adaptive test to measure outcome after total knee arthroplasty
The common metric provides a more precise measurement of knee health than any of the individual instruments, and avoids floor and ceiling effects inherent in individual scores. The CAT algorithm reduced the item burden to a median of eight items, which is lower than the FJS or OKS, when used as individual instruments. It will also allow for standardization of outcome reporting and pooling of results across databases that use any of the four instruments to facilitate individual and meta-analyses across different scores.
Authors
- Jeremy Rodrigues (ORCID: https://orcid.org/0000-0002-9347-5026)
- Chloe E. H. Scott (ORCID: https://orcid.org/0000-0002-0012-1596)
- Chetan Khatri (ORCID: https://orcid.org/0000-0002-3961-1314)
- Andrew Metcalfe (ORCID: https://orcid.org/0000-0002-4515-8202)
- Conrad J Harrison (ORCID: https://orcid.org/0000-0002-1428-5751)
- Nick D. Clement (ORCID: https://orcid.org/0000-0001-8792-0659)
- Deborah J. MacDonald (ORCID: https://orcid.org/0000-0003-2682-1408)
Institutions
- Nuffield Orthopaedic Centre (GB)
- Edinburgh Royal Infirmary (GB)
- University of Warwick (GB)
- University of Oxford (GB)
- University of Edinburgh (GB)
Publication Details
- Journal
- The Bone & Joint Journal
- Published
- 2025-09-01
- DOI
- https://doi.org/10.1302/0301-620x.107b9.bjj-2024-0993.r2
- Citations
- 2
- Primary Topic
- Total Knee Arthroplasty Outcomes
- Type
- article
- Field-Weighted Citation Impact
- 4.01