1. Department of Orthopedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
2. Medical Device R & D Core Laboratory, National Cheng Kung University Hospital, Tainan 704, Taiwan
3. School of Medicine, National Cheng Kung University, Tainan 701, Taiwan
4. Department of Orthopedics, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
5. Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan
6. Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
7. Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
8. Department of Orthopedic Surgery, Show Chwan Memorial Hospital, Changhua 500, Taiwan