Department of Orthopaedics, the Second Hospital of Shandong University, Jinan, Shandong 250033, China;
Department of Orthopaedics, the Second Hospital of Shandong University, Jinan, Shandong 250033, China;
Department of Orthopaedics, the Second Hospital of Shandong University, Jinan, Shandong 250033, China;