OBJECTIVE: To determine relationships between increased signal intensity (ISI) on T2-weighted cervical spine magnetic resonance imaging (MRI) and parameters of gait analysis in patients with cervical spondylotic myelopathy (CSM). DESIGN: Retrospective comparative study. SETTING: Gait analysis laboratory. PARTICIPANTS: Patients (N=36) who undertook cervical laminectomy or laminoplasty because of CSM. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Subjects were evaluated by using the modified Japanese Orthopaedic Association (JOA) scale, the Nurick scale, cervical spine MRI, and gait analysis. Two radiologists classified patients into 3 groups: intense, faint, and no ISI. RESULTS: Relative to patients without ISI, those with ISI showed significantly slower gait speed, longer step time, decreased single-limb support time, increased double-limb support time, and limited range of motion of knee and ankle (P<.05). Increased intensity tended to correlate with poor gait function including slower gait speed, longer step time, decreased single-limb support time, and increased double-limb support time. The modified JOA and Nurick scale did not correlate with ISI. CONCLUSIONS: In patients with CSM who received surgical treatment, more intense ISI on T2-weighted MRI correlated preoperatively with increased difficulties in gait function. Gait analysis may be a useful tool for evaluating gait functions in cervical myelopathy.
OBJECTIVE: To determine relationships between increased signal intensity (ISI) on T2-weighted cervical spine magnetic resonance imaging (MRI) and parameters of gait analysis in patients with cervical spondylotic myelopathy (CSM). DESIGN: Retrospective comparative study. SETTING: Gait analysis laboratory. PARTICIPANTS: Patients (N=36) who undertook cervical laminectomy or laminoplasty because of CSM. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Subjects were evaluated by using the modified Japanese Orthopaedic Association (JOA) scale, the Nurick scale, cervical spine MRI, and gait analysis. Two radiologists classified patients into 3 groups: intense, faint, and no ISI. RESULTS: Relative to patients without ISI, those with ISI showed significantly slower gait speed, longer step time, decreased single-limb support time, increased double-limb support time, and limited range of motion of knee and ankle (P<.05). Increased intensity tended to correlate with poor gait function including slower gait speed, longer step time, decreased single-limb support time, and increased double-limb support time. The modified JOA and Nurick scale did not correlate with ISI. CONCLUSIONS: In patients with CSM who received surgical treatment, more intense ISI on T2-weighted MRI correlated preoperatively with increased difficulties in gait function. Gait analysis may be a useful tool for evaluating gait functions in cervical myelopathy.
Authors: Wen Jie Choy; Lingxiao Chen; Camila Quel De Oliveira; Arianne P Verhagen; Omprakash Damodaran; David B Anderson Journal: J Spine Surg Date: 2022-03
Authors: Sukhvinder Kalsi-Ryan; Anna C Rienmueller; Lauren Riehm; Colin Chan; Daniel Jin; Allan R Martin; Jetan H Badhiwala; Muhammad A Akbar; Eric M Massicotte; Michael G Fehlings Journal: J Clin Med Date: 2020-03-10 Impact factor: 4.241