Patellofemoral (PF) osteoarthritis (OA) is a somewhat predominant illness, affecting up to 24% of women and 11% ofmen over the age of 55 years who suffer from symptomatic knee OA. The purposes of this narrative overview are tosummarize the present situation of patellofemoral arthroplasty (PFA) in the treatment of solitary PF-OA, and to givean account of the clinical results of...

[Purpose] This study investigated the relationship between muscle weakness and activation of the cerebral cortex in the early period after unicompartmental knee arthroplasty (UKA). [Subjects] The subjects were 11 patients who underwent UKA. [Methods] They performed maximum isometric knee extension using a muscle force measurement device before, and 1 and 2 weeks after UKA. They were simultaneou...