Perthes' disease.
D000293:Adolescent; D000328:Adult; D002370:Casts, Surgical; D002648:Child; D002675:Child, Preschool; D005260:Female; D005271:Femur Head Necrosis / Q000628:therapy*; D005500:Follow-Up Studies; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000000981:diagnostic imaging / Q000628:therapy*; D008297:Male; D010027:Osteotomy / Q000379:methods; D011859:Radiography; D014143:Traction