Importance of patellofemoral and tibiofemoral cartilage lesions on trajectory of self-reported outcomes in patients at high risk of knee OA: 4–6 years follow-up of patients undergoing meniscal surgery

E. M. Macri*, A. G. Culvenor, M. Englund, K. Pihl, C. Varnum, R. Knudsen, L. S. Lohmander, J. B. Thorlund

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Abstrakt

Objective: We evaluated whether patient-reported outcome trajectories (i.e., changes over time) differed by intraoperative compartmental cartilage lesion pattern over 4–6 years following arthroscopic meniscal surgery. Methods: In this ancillary study of the Knee Arthroscopy Cohort Southern Denmark cohort, we intraoperatively categorized cartilage lesions as isolated patellofemoral, isolated tibiofemoral, or combined patellofemoral/tibiofemoral. Participants completed the Knee injury and Osteoarthritis Outcome Score (KOOS) pre-operatively, at 3 and 12 months, and at 4–6 years post-operatively and reported overall satisfaction at final follow-up. Our main outcome was KOOS4 (grand mean of four subscale means). We evaluated whether KOOS4 scores changed over time according to cartilage lesion patterns using adjusted mixed linear regression. We also estimated probability of treatment satisfaction using logistic regression. Results: Of 630 participants with complete cartilage scores, 280 (44%) were women, mean (standard deviation) age was 49 (13) years, and BMI was 27.3 (4.4) kg/m2. KOOS4 scores at baseline were slightly lower in all lesion groups compared to the no lesion group, yet only the combined group was statistically significantly lower. KOOS4 trajectories were similar across cartilage lesion patterns, but by final follow-up, adjusted mean KOOS4 scores were 6.8 (95% CI 2.2, 11.4) to 9.8 (1.1, 18.5) points lower in groups with cartilage lesions compared to the no lesion group. Probability of patient-reported satisfaction did not differ statistically by group. Conclusions: Though KOOS4 scores were slightly lower in groups with arthroscopically assessed cartilage lesions compared to the no lesion group, trajectories were similar across all groups.

OriginalsprogEngelsk
TidsskriftOsteoarthritis and Cartilage
Vol/bind29
Udgave nummer9
Sider (fra-til)1291-1295
ISSN1063-4584
DOI
StatusUdgivet - sep. 2021

Bibliografisk note

Funding Information:
This study was supported by grants from The Danish Council for Independent Research/Medical Sciences ( #12–125457 ) and the Region of Southern Denmark ( #12/6334 ). EMM is a recipient of a Canadian Institutes of Health Research (CIHR) Banting Postdoctoral Fellowship. AGC is a recipient of a National Health and Medical Research Council (NHMRC) of Australia Early Career Fellowship (Neil Hamilton Fairley Clinical Fellowship, APP1121173).

Funding Information:
JBT has received research funding from Pfizer , not related to the present study. ME has received consultancy fees from Pfizer, not related to the present study.

Publisher Copyright:
© 2021 The Authors

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