1. Department of Orthopedic Surgery Orthopedic Institute The First Affiliated Hospital of Soochow University 708 Renmin Road Suzhou Jiangsu 215006 P. R. China
2. Department of Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases Shanghai Institute of Traumatology and Orthopaedics Ruijin Hospital Shanghai Jiao Tong University School of Medicine 197 Ruijin 2nd Road Shanghai 200025 P. R. China
3. Departments of Pain Rehabilitation and Orthopaedic Surgery Shanghai Public Health Clinical Center Fudan University 2901 Caolang Road Shanghai 200025 P. R. China