Affiliation: | (1) Department of Orthopaedic Surgery, Osaka Koseinenkin Hospital, 4-2-78 Fukushima, Fukushima-ku, Osaka 553-0003, Japan;(2) Department of Orthopaedic Surgery, Takarazuka Daiichi Hospital, 19-5 Kogetsu-cho, Takarazuka-shi, Hyogo-ken 665-0832, Japan;(3) National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Sagamihara-shi, Kanagawa-ken 228-8522, Japan |