Ultrasonographic morphological changes in the prefemoral fat pad associated with knee osteoarthritis

Background: In normal knees, quadriceps contraction changes the shape of the prefemoral fat pad (PFP). However, in persons with knee osteoarthritis (OA), the functional or morphological changes of the PFP are unclear. This study aimed to clarify the morphological changes in the PFP in individuals with knee OA through ultrasonography. Materials and Methods: Participants were divided into the OA (36 knees; mean age, 74 years), elderly (31 knees;...