[1] Inje Univ, Seoul Paik Hosp, Coll Med, Dept Orthopaed Surg, Seoul, South Korea
[2] Johns Hopkins Univ, Sch Med, Ctr Metab & Obes Res, Dept Orthopaed Surg, Baltimore, MD USA
[3] Kaohsiung Med Univ Hosp, Dept Orthopaed Surg, Kaohsiung, Taiwan
[4] Univ Minnesota, Sch Med, Dept Orthopaed Surg, Minneapolis, MN 55455 USA
[5] Univ Virginia, Sch Med, Dept Orthopaed Surg, Charlottesville, VA 22908 USA
[6] Rhein Westfal TH Aachen, Dept Orthoped & Trauma Surg, Aachen, Germany
[7] Osaka Univ, Grad Sch Med, Dept Orthopaed Med Engn, Suita, Osaka, Japan
[8] Univ Libre Bruxelles, Hop Erasme, Dept Rheumatol & Phys Med, Brussels, Belgium
[9] Stanford Univ, Sch Med, Dept Orthopaed Surg, Redwood City, CA USA
[10] Chung Ang Univ, Coll Med, Dept Orthopaed Surg, Seoul, South Korea
[11] Hop Henri Mondor, Dept Orthopaed Surg, Creteil, France
[12] Mercy Med Ctr, Dept Orthoped Surg, Baltimore, MD USA
[13] NYU, Hosp Joint Dis, Langone Med Ctr, Dept Orthopaed Surg, New York, NY USA
[14] Catholic Univ Korea, Coll Med, Seoul St Marys Hosp, Dept Orthopaed Surg, Seoul, South Korea
[15] Addenbrookes Cambridge Univ Hosp, Dept Trauma & Orthopaed, Cambridge, England
[16] UT Southwestern Med Ctr, Dept Orthopaed Surg, Dallas, TX USA
[17] Kyungpook Natl Univ, Grad Sch Med, Dept Orthoped Surg, Daegu, South Korea
[18] Konkuk Univ, Med Ctr, Dept Orthoped Surg, Seoul, South Korea
[19] Seoul Natl Univ, Bundang Hosp, Ctr Prevent Med & Publ Hlth, Seongnam, South Korea
[20] Kaohsiung Chang Gung Mem Hosp, Dept Orthopaed Surg, Kaohsiung, Taiwan
[21] Seoul Natl Univ, Bundang Hosp, Dept Orthopaed Surg, 166 Gumi Ro,KS009, Seongnam 463707, South Korea
[22] Seoul Natl Univ, Bundang Hosp, Dept Internal Med, Seongnam, South Korea
[23] Seoul Natl Univ, Coll Med, Seongnam, South Korea
[24] Sinai Hosp Baltimore, Ctr Joint Preservat & Replacement, Rubin Inst Adv Orthoped, Dept Orthopaed Surg, Baltimore, MD USA
[25] Fukuoka Univ, Fac Med, Dept Orthopaed Surg, Fukuoka, Fukuoka, Japan