Specific functional knee phenotypes are associated with increased osteoarthritis progression: A ≥10-year longitudinal study.
PURPOSE To evaluate osteoarthritis (OA) progression across functional knee phenotypes (FKPs) over a follow-up period of ≥10 years. METHODS This retrospective longitudinal study included 388 patients (764 knees) with healthy knees or early OA (Kellgren-Lawrence grade ≤1) at baseline and a minimum follow-up of 10 years...