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ORIGINAL ARTICLE
Year : 2018  |  Volume : 5  |  Issue : 2  |  Page : 53-56

Role of kinematic magnetic resonance imaging for evaluation of cervical spondylotic myeloradiculopathy: diagnostic accuracy and surgical planning


1 Resident, Department of Neurosurgery, Apollo Hospitals, Chennai, Tamil Nadu, India
2 Senior Consultant, Department of Neurosurgery, Apollo Hospitals, Chennai, Tamil Nadu, India
3 Resident, Department of Neurosurgery, Apollo Hospitals, Chennai Tamil Nadu, India

Correspondence Address:
Sachin Chemate
Resident, Department of Neurosurgery, Apollo Hospitals, Chennai, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.5005/jp-journals-10039-1170

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Objective: The dynamic part of cervical spondylotic myeloradiculopathy (CSM) is conventionally being evaluated usingstatic magnetic resonance imaging (MRI), which does not address dynamic changes in flexion and extension of the cervical vertebral column. The objective of the study is to evaluate the utility of kinematic MRI imaging indiagnostic accuracy and surgical planning of evaluation of CSM. Materials and methods: In a prospective study, 30 patients with CSM were evaluated with conventional standard MRcervical spine and kinematic MRI cervical spine with flexion and extension. Morphometric measurements were compared between neutral, flexion, and extension images. Results: The cervical cord length and cervical canal length were significantly longer in flexion and significantly shorter in extension in all cervical cord sagittal lines. Flexion was associated with decrease in spinal cordcompression in 40% of patients, whereas extension caused increase in compression (increase in the size of T2 hyperintensivity) in 75% of patients.Extension identified new subtle T2 hyperintensities. Interpretationof standardMRI findings and the clinical level of radiculopathyis poor, which improves when the neck is extended. Conclusion: Our results suggest that integration of kinematic MRI with standard static MRI provides additional information in diagnostic accuracy and surgical planning.


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