1) Brotherton BJ, McKibbin B:Perthes' disease treated by prolonged recumbency and femoral head containment:A long-term appraisal. J Bone Joint Surg Br 59:8-14, 1977
2) Catterall A:The natural history of Perthes' disease. J Bone Joint Surg Br53:37-53, 1971
3) Clarke TE, Finnegan TL, Fisher RL, et al:Legg-Perthes disease in children less than four years old. J Bone Joint Surg Am 60:166-168, 1978
4) Fabry K, Fabry G, Moens P:Legg-Calve-Perthes disease in patients under 5 years of age dose not always result in a good outcome. Personal experience and meta-analysis of the literature. J Peditatr Orthop B12:222-227, 2003
5) Nakamura J, Kamegaya M, Saisu T, et al:Outcome of patients with Legg-Calve-Perthes onset before 6 years of age. J Pediatr Orthop35:144-150, 2014
6) Nakamura J, Kamegaya M, Saisu T, et al:Hip arthrography under general anesthesia to refine the definition of hinge abduction in Legg-Calve-Perthes disease. J Pediatr Orthop28:614-618, 2008
7) 西山正紀,長倉 剛,二井英二・他:3歳以下の発症のペルテス病の検討.臨整外39:1087-1091,2004
8) Schoenecker PL, Stone JW, Capelli AM:Legg-Perthes disease in children under 6 years old. Orthop Rev22:201-208, 1993