1. Department
of Orthopedics, The First Affiliated Hospital of Soochow University,
Orthopedic Institute, Soochow University, Suzhou, Jiangsu 215007, P. R. China
2. Yancheng City No. 1 People’s Hospital, the Fourth Affiliated Hospital of Nantong University, Yancheng, Jiangsu 224001, P. R. China
3. Shanghai
Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory
for Prevention and Treatment of Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin second Road, Shanghai 200025, P. R. China