Disorders of the patella.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002357:Cartilage Diseases / Q000473:pathology; D002675:Child, Preschool; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000473:pathology; D007866:Leg; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000293:injuries; D009261:Nail-Patella Syndrome / Q000473:pathology; D010003:Osteoarthritis; D010007:Osteochondritis; D010329:Patella