Cross-cultural comparison of the Oxford Hip and Knee Scores in patients undergoing hip or knee replacement
Approval date: September 2023
Starting date: January 9th 2024
Lina Holm Ingelsrud, Karl Bang Christensen, Shiraz Sabah, Eric Bohm, Mark Wilkinson, Anders Troelsen, Andrew Price, Anneke Spekenbrink-Spooren, Anne Lubbeke Wolff, Christoph Barea, Jasper Most, Conrad Harrison, International Society of Arthroplasty Registries PROMs working group
Research proposal abstract
The Oxford Hip and Knee Scores (OHS and OKS) are well-established measures to evaluate the patients’ degree of pain and functional limitations after undergoing a hip or knee replacement. Numerous language versions of the OHS and OKS exist, for many of which clinimetric properties such as validity, reliability and responsiveness have been investigated, most often with a classical test theory approach. With a newer item response theory (IRT) approach, response patterns are modelled to reflect the
underlying latent construct. IRT models for the OKS and OHS were recently developed using data from the National Health Service (NHS) patient-reported outcome measures (PROMs) program. Despite their established use, stringent evaluations of the OHS and OKS equivalence across language versions have not been performed. We aim to evaluate the validity of an IRT framework and measurement equivalence of the OHS and OKS across different language versions in patients undergoing a hip or knee replacement.
Data will be sourced from the United Kingdom NHS PROMs program, the Landelijke Registratie Orthopedische Interventies (LROI), the Danish Copenhagen University Hospital Hvidovre’s local arthroplasty database, and the Swiss Genova Arthroplasty Registry. The study will be conducted in 2024.