Characterizing the distinct structural changes associated with self-reported knee injury among individuals with incident knee osteoarthritis: Data from the osteoarthritis initiative.
We aimed to characterize the agreement between distinct structural changes on magnetic resonance (MR) imaging and self-reported injury in the 12 months leading to incident common or accelerated knee osteoarthritis (KOA). We conducted a descriptive study using data from baseline and the first 4 annual visits of the Osteoarthritis Initiative. Knees had no radiographic KOA at baseline (Kellgren-Lawrence [KL]<2). We classified two groups: (1) accelerated KOA: a knee developed advanced-stage KOA (KL = 3 or 4) within 48 months and (2) common KOA: a knee increased in radiographic severity (excluding those with accelerated KOA). Adults were 1:1 matched based on sex. The index visit was when a person met the accelerated or common KOA criteria. We limited our sample to people with MR images and self-reported injury data at index visit and year prior. Among 226 people, we found fair agreement between self-reported injuries and distinct structural changes (kappa = 0.24 to 0.31). Most distinct structural changes were medial meniscal pathology. No distinct structural changes (e.g., root or radial tears) appeared to differ between adults who reported or did not report an injury; except, all subchondral fractures occurred in adults who developed accelerated KOA and reported an injury. While there is fair agreement between self-reported knee injuries and distinct structural changes, there is some discordance. Self-reported injury may represent a different construct from distinct structural changes that occur after joint trauma. Clin. Anat. 31:330-334, 2018. © 2018 Wiley Periodicals, Inc.
['Davis|Julie E|JE|http://orcid.org/0000-0002-1327-484X', 'Harkey|Matthew S|MS|', 'Ward|Robert J|RJ|', 'Mackay|James W|JW|', 'Lu|Bing|B|', 'Price|Lori Lyn|LL|', 'Eaton|Charles B|CB|', 'Barbe|Mary F|MF|', 'Lo|Grace H|GH|', 'McAlindon|Timothy E|TE|', 'Driban|Jeffrey B|JB|http://orcid.org/0000-0001-6098-4273']
D000368:Aged D005260:Female D006801:Humans D007718:Knee Injuries D008279:Magnetic Resonance Imaging D008297:Male D008875:Middle Aged D020370:Osteoarthritis, Knee
knee injuries osteoarthritis magnetic resonance imaging meniscus self report