1. Department of Anesthesiology, Hebei Children’s Hospital Affiliated to Hebei Medical University, Shijiazhuang, Hebei, China
2. Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
3. Department of Orthopaedics, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
4. NHC Key Laboratory of Intelligent Orthopaedic, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
5. Department of Pathophysiology, Hebei Medical University, Shijiazhuang, Hebei, China
6. Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China