1. Department of Orthopedics, Linyi Second People’s Hospital, Linyi, China;
2. Department of Orthopedics, Tengzhou People’s Hospital, Tengzhou, China;
3. Department of General Surgery, Affiliated Hospital of Taishan Medical University, Tai’an, China;
4. Department of Orthopedic Surgery, Affiliated Hospital of Taishan Medical University, Tai’an, China