Patella Height in Different Ethnic Populations: An Observational Multicenter Study.

Patella height appears to have a crucial role in knee biomechanics. Patellar malalignment and maltracking are therefore believed to be associated with development and progression of patellofemoral pain and disease. Published data are scant regarding the effect of everyday tasks on patella height and patellofemoral disease.

Severe metallosis following polyethylene dislocation in a mobile-bearing medial unicompartmental knee replacement.

Metallosis is a rare cause of failure after unicompartmental knee replacement (UKR) and has only previously been reported when there has been abnormal metal-on-metal contact. We present a case report of a 67-year-old woman who was admitted to our department with a 5-month history of a painful right knee. There was no history of trauma and her past medical history was unremarkable.