1. Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
2. Department of Hip Injury and Disease, Luoyang Orthopedic Hospital of Henan Province, Luoyang, Henan, China
3. Department of Orthopedics, The First Hospital of Traditional Chinese Medicine, Luoyang, Henan, China