Meniscal extrusion or XXXX characterize incident accelerated @entity571 : Data from the @entity571 Initiative.

@entity1 @entity626 @entity571 @entity1170 @entity16 @entity3331
@entity626 ( @entity626 ) is typically a slowly progressive disorder; however, a subset of knees progress with @entity1170 . We aimed to describe magnetic resonance imaging (MRI) findings that are associated with accelerated @entity626 . We conducted a longitudinal descriptive study in the @entity571 Initiative cohort. We selected @entity1 who had no radiographic @entity626 at baseline with one of the following in the most severe knee: (1) accelerated @entity626 (progressed to end-stage @entity626 within 48 months), (2) common @entity626 , and (3) no @entity626 at all visits. We enriched the sample by selecting knees with a self-reported or suspected @entity3331 . A musculoskeletal radiologist blinded to group assignments but not to time sequence performed MRI readings for the visit before and after an injury. We assessed 38 @entity1 (knees), 66% were female, mean age 61 (9) years, and mean body mass index 28.5 (4.9) kg/m(2). Fifteen of 20 knees with no or common @entity626 , had no incident findings consistent with acute damage. Among the 18 knees with accelerated @entity626 most had incident findings: 13 (72%) had incident medial meniscal pathology with extrusion and 5 (28%) knees had @entity16 . Incident MRI findings that are associated with incident accelerated @entity626 are characterized by structural damage that compromises subchondral bone or the function of the meniscus. Recognizing meniscal extrusion and/or change in shape, lateral meniscal tear, or acute @entity16 may be vital for identifying individuals at risk for accelerated @entity626 .
