Department of Orthopaedic Surgery Qilu Hospital of Shandong University Jinan 250012 China;
Department of Pediatric Surgery Qian Foshan Hospital Jinan 250014 China;
Department of Orthopaedic Surgery Qilu Hospital of Shandong University Jinan 250012 China;
Department of Orthopaedic Surgery Qilu Hospital of Shandong University Jinan 250012 China;
Department of Pathology Qjlu Hospital of Shandong University Jinan 250012 China;
Department of Orthopaedic Surgery Qilu Hospital of Shandong University Jinan 250012 China;