1. Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
2. Orthopaedic Research Institute of Hebei Province, Shijiazhuang, Hebei, P.R. China
3. The Third Department of Orthopedics, Baoding First Central Hospital, Hebei, P.R. China
4. Department of Joint Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
5. NHC Key Laboratory of Intelligent Orthopaedic Equipment (The Third Hospital of Hebei Medical University), Shijiazhuang, Hebei, P.R. China.