1 Department of Orthopaedic Surgery, Osaka General Hospital of West Japan Railway Company, Osaka, Japan; Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
2 Department of Orthopaedic Surgery, Osaka General Hospital of West Japan Railway Company, Osaka, Japan; Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. Electronic address: [email protected].
3 Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
4 Department of Orthopaedic Surgery, Osaka General Hospital of West Japan Railway Company, Osaka, Japan.