1. Department of Orthopedic Surgery, Shinshu University School of Medicine, 3-26-1, Asahi, Matsumoto, Nagano 390-8621, Japan
2. Department of Plastic and Reconstructive Surgery, Shinshu University School of Medicine, 3-26-1, Asahi, Matsumoto, Nagano 390-8621, Japan
3. Suwa Red Cross Hospital, 5-11-50, Kogandoori, Suwa, Nagano 392-8510, Japan
4. Department of Rehabilitation, Shinshu University Hospital, 3-26-1, Asahi, Matsumoto, Nagano 390-8621, Japan
5. Institute for Biomedical Sciences, Shinshu University School of Medicine, 3-26-1, Asahi, Matsumoto, Nagano 390-8621, Japan