Location change of center of rotation after single-level cervical total disc replacement with ProDis

• 作 者: JigangLou;HuiboLi;XinRong;WenjieWu;HaoLiu;
• 机 构: Department of Orthopedics, West China Hospital, Chengdu 610041
• 出 处: 2015成都国际骨科论坛暨四川省医学会第19次骨科学术会议
• 发表日期: 2015年期

　　Objective: Previous studies reported that the location of the center of rotation (COR) at instrumented level after cervical total disc replacement (TDR) deviated from its preoperative location.However, currently, it is unknown whether the deviated COR is linked to the range of motion (ROM) at instrumented level.The purpose of this study was to evaluate the clinical outcomes after cervical TDR with ProDisc-C and investigate the location change of the COR at instrumented level and its clinical significance.Methods: A total of 23 patients who underwent single-level cervical TDR with ProDisc-C were included.Japanese Orthopaedic Association (JOA) score and Neck Disability Index (NDI) were used to assess clinical outcomes.Radiographic parameters such as cervical ROM, instrumented segmental ROM, adjacent segmental ROM and intervertebral height were analyzed.