1. Department of Plastic and Reconstructive Surgery, Shanghai 10th People's Hospital, TongJi University, Shanghai, People's Republic of China.
2. Department of Orthopaedic Surgery, Shanghai Minhang Central Hospital, Shanghai, People's Republic of China.
3. Department of Orthopaedic Surgery, The 4th Hospital of Haerbin Medical University, Haerbin, People's Republic of China.