Affiliation: | 1. Department of Orthopaedics, Osaka University Graduate School of Medicine, Osaka, Japan,;2. Department of Orthopaedics, Matsumoto Hospital, Osaka, Japan,;3. Department of Global and Innovative Medicine, Osaka University Graduate School of Medicine, Osaka, Japan,;4. Department of Orthopaedics, Osaka Rosai Hospital, Osaka, Japan, and |