title: Coxa plana (Legg-Perthes disease).
mesh_terms: D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006621:Hip Joint; D006801:Humans; D008297:Male; D010007:Osteochondritis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology / Q000235:genetics / Q000601:surgery / Q000628:therapy; D011379:Prognosis; D011859:Radiography; D012146:Rest; D012737:Sex Factors; D013585:Synovitis / Q000150:complications; D014481:United States