Collins NJ, et al. - In adults with persistent patellofemoral pain (PFP), authors characterized the occurrence of radiographic features of patellofemoral osteoarthritis (PFOA). They also ascertained the occurrence of magnetic resonance imaging (MRI) patellofemoral osteoarthritis (PFOA) and compared to age- and sex-matched controls. Moreover, they explored the radiographic and MRI occurrence across age, sex and body mass index (BMI) groups. In 20-30% of adults aged 26-50 years with persistent PFP, radiographic and MRI PFOA features were evident. Greater occurrence of radiographic and MRI PFOA was seen in those who were older, female, or with higher BMI. In individuals with PFP, findings suggested a higher occurrence of MRI PFOA vs pain-free controls, particularly when defined as a full-thickness cartilage lesion with BML.