[4 cases of congenital dislocation of the knee joint].
D005260:Female; D005269:Femur / Q000000981:diagnostic imaging; D006801:Humans; D007231:Infant, Newborn; D004204:Joint Dislocations / Q000151:congenital* / Q000601:surgery; D007718:Knee Injuries / Q000151:congenital*; D008297:Male; D011859:Radiography; D014143:Traction