1. Department of Orthopaedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710006, China
2. Zonglian College, Xi’an Jiaotong University, Xi’an 710054, China
3. Department of Osteonecrosis & Joint Reconstruction Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China