Prevalence of Patellofemoral Pain and Knee Pain in the General Population of Saudi Arabia.

Background Patellofemoral pain (PFP) is a common cause of knee pain. This condition can restrict daily activities by trying to avoid activities that aggravate their pain. This study aimed to determine the prevalence of PFP and knee pain and its associated factors among Saudi young adults.

Primary Psoas Abscess Complicated by Septic Arthritis Due to Community-Acquired Methicillin-Resistant Staphylococcus aureus: A Case Report and Review of Literature.

This is a report of an unusual case of a primary psoas abscess due to community-acquired methicillin-resistant (MRSA) in an immunocompetent man. The course of the disease is expressed as septic arthritis of the hip joint with avascular necrosis. Diagnosed one month after symptoms began, the patient was treated by surgical evacuation of the abscess and appropriate antibiotics.