This week on ‘Journals’, we’ll look at not just one, but two studies that endeavored to define knee osteoarthritis (OA) through magnetic resonance imaging (MRI) imagery. The manuscripts we’ll be discussing are: 

• Development of a Magnetic Resonance Imaging–Based Definition of Knee Osteoarthritis: Data From the Multicenter Osteoarthritis Study  

• Diagnostic accuracy of candidate MRI knee osteoarthritis definitions versus radiograph in an acute anterior cruciate ligament injury cohort 

Our guest is lead author and social media influencer for rheumatology, Dr. Jean Liew, MD, MS (@Rheum_cat)