T2-weighted MRI high signal in cervical spondylotic myelopathy is associated with dynamic change

作者：Xiangzhen Kong, Zhenchuan Liu, Kangle Song, Keyu Pan, Yuanqiang Zhang, Jianlu Wei, Lei Cheng · 发表于：Journal of Orthopaedic Surgery and Research · 年份：2025 · DOI：10.1186/s13018-025-05715-1 · 被引用次数：7 · 研究领域：Cervical and Thoracic Myelopathy、Spine and Intervertebral Disc Pathology、Spinal Fractures and Fixation Techniques

OBJECTIVE: The cervical spine's mobility affects the compression level of the cervical cord which varies with dynamic positioning. High signal on MRI T2-weight imaging (MRI-T2WI) of the cervical cord indicates a poorer prognosis. This study investigates the relationship between high-signal intensity on MRI-T2WI and cervical dynamic change using kinematic MRI. The objective of this study was to explore changes in the degree of cervical spinal cord compression during flexion-extension motions and identify risk factors linked to the occurrence of high signals. MATERIALS AND METHODS: We collected data on patients who underwent surgical treatment for cervical spondylotic myelopathy (CSM) in our department from 2023 to 2024. Patients were classified into two groups based on high-intensity signal presence: the high-signal group and non-high-signal group. Using kinematic MRI, the area and width of cervical cord compression in the responsible segment were measured in the axial and sagittal positions. Differences between the two groups were assessed using univariate analysis, binary logistic analysis, receiver operating characteristic (ROC) curve, and restricted cubic spline (RCS) regression model. RESULTS: A total of 40 patients in the high-signal group and 30 in the non-high-signal group were included in the study. There was no significant difference in baseline characteristics between two groups. The degree of cord compression was remarkably increased in both groups with cervical ra...