Perthes' disease.
D005270:Femur Head / Q000601:surgery; D005271:Femur Head Necrosis / Q000628:therapy*; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000628:therapy*; D008297:Male; D010027:Osteotomy / Q000379:methods; D012737:Sex Factors; D013165:Splints