1. Innovation Platform of Regeneration and Repair of Spinal Cord and Nerve Injury, Department of Orthopaedic Surgery The Seventh Affiliated Hospital of Sun Yat‐sen University Shenzhen China
2. Department of Medical Ultrasonic The Seventh Affiliated Hospital of Sun Yat‐sen University Shenzhen China
3. Laboratory of Bone Tissue Engineering Beijing Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing JiShuiTan Hospital Beijing China
4. Guangdong Provincial Key Laboratory of Orthopedics and Traumatology The First Affiliated Hospital of Sun Yat‐sen University Guangzhou China