[1] Shimane Univ, Dept Orthopaed Surg, Izumo, Japan
[2] Juntendo Univ, Dept Orthopaed, Tokyo, Japan
[3] Kochi Univ, Dept Orthopaed Surg, Nankoku, Japan
[4] RIKEN, Ctr Integrated Med Sci IMS, Lab Bone & Joint Dis, Tokyo, Japan
[5] Hirosaki Univ, Grad Sch Med, Dept Orthoped Surg, Hirosaki, Japan
[6] Niigata Univ Hlth & Welf, Dept Hlth & Sports, Niigata, Japan
[7] Kurume Univ, Sch Med, Dept Orthopaed, Fukuoka, Japan
[8] Yokohama Sekishinkai Hosp, Dept Joint Surg Ctr, Yokohama, Japan
[9] Univ Tokyo, Dept Orthopaed Surg, Tokyo, Japan
[10] Oita Univ, Dept Orthopaed Surg, Oita, Japan
[11] Aichi Med Univ, Dept Orthopaed Surg, Nagakute, Japan
[12] Hokkaido Univ, Fac Hlth Sci, Sapporo, Japan
[13] Univ Tokyo, Century Med & Res Ctr 22, Dept Prevent Med Locomot Organ Disorders, Tokyo, Japan
[14] Kyushu Univ, Dept Orthoped Surg, Fukuoka, Japan