[Spontaneous osteonecrosis of the knee].
D000367:Age Factors; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging; D007717:Knee / Q000000981:diagnostic imaging*; D008297:Male; D010020:Osteonecrosis / Q000000981:diagnostic imaging*; D011859:Radiography
Polven spontaani osteonekroosi.