Responsiveness of the Various Short-Form Versions of the Knee Injury and Osteoarthritis Outcome Score Between 2 and 5 Years After Anterior Cruciate Ligament Reconstruction.

Autor:	Webster KE; School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia., Klemm HJ; School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia.; OrthoSport Victoria, Epworth HealthCare, Melbourne, Australia., Whitehead TS; OrthoSport Victoria, Epworth HealthCare, Melbourne, Australia., Norsworthy CJ; OrthoSport Victoria, Epworth HealthCare, Melbourne, Australia.; Faculty of Medicine, Monash University, Melbourne, Australia.; Eastern Health, Box Hill, Australia., Feller JA; School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia.; OrthoSport Victoria, Epworth HealthCare, Melbourne, Australia.
Jazyk:	angličtina
Zdroj:	Orthopaedic journal of sports medicine [Orthop J Sports Med] 2024 Mar 22; Vol. 12 (3), pp. 23259671241236513. Date of Electronic Publication: 2024 Mar 22 (Print Publication: 2024).
DOI:	10.1177/23259671241236513
Abstrakt:	Background: Various short-form versions of the Knee injury and Osteoarthritis Outcome Score (KOOS) have been developed in an attempt to minimize responder burden. However, the responsiveness of these short-form measures in patients who have undergone anterior cruciate ligament (ACL) reconstruction has not been compared at midterm follow-up. Purpose: To determine the responsiveness of 3 short-form versions of the KOOS (KOOS-12, KOOS-Global, and KOOS-ACL) in patients who have undergone ACL reconstruction. Study Design: Cohort study (diagnosis); Level of evidence, 3. Methods: In 276 patients (149 male, 127 female), we administered the KOOS and a measure of overall knee function at both 2 and 5 years after ACL reconstruction. From the full KOOS, the following short-form versions were calculated: KOOS-12, KOOS-Global, and KOOS-ACL. Responsiveness was assessed using several distribution and anchor-based methods for each of the short-form versions. From distribution statistics the standardized response mean (SRM) and smallest detectable change (SDC) were calculated. Using the anchor-based method, the minimally important change (MIC) that was associated with an improvement in knee function was determined using receiver operating characteristic (ROC) analysis. Results: High ceiling effects were present for all measures. KOOS-Global scores increased significantly over time, whereas KOOS-12 and KOOS-ACL did not change. The KOOS-Quality of Life (QOL) subscale, which can be derived from both KOOS-Global and KOOS-12, also increased significantly between assessments. Both these increases were associated with a small (0.2-0.3) SRM. The MIC was smallest for KOOS-Global (3.2 points) and largest for KOOS-QOL (9.4 points), and, for all measures, the MIC was larger than the SDC at a group level. KOOS-Global was the only measure for which the mean difference between the 2- and 5-year assessments exceeded both the SDC (group level) and the MIC. Conclusion: Of the 3 short-form versions of the KOOS currently available, the KOOS-Global had the greatest responsiveness to change between the 2- and 5-year assessments after ACL reconstruction. High ceiling effects were present for all versions. Competing Interests: One or more of the authors has declared the following potential conflict of interest or source of funding: J.A.F. is a paid associate editor for The Orthopaedic Journal of Sports Medicine. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto. Ethical approval for this study was obtained from La Trobe University (reference No. HEC22221). (© The Author(s) 2024.)
Databáze:	MEDLINE
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