Introduction: Spinal trauma is relatively more common in young active individuals. Although its mortality is low, it is an important cause of long term disability. Magnetic resonance imaging (MRI) can accurately depict presence and extent of spinal cord injury (SCI) in these patients. This study was aimed to look for various qualitative and quantitative MRI findings which are predictive of initial neurological deficit in patients with spinal trauma and final outcome on follow-up.
Materials And Methods: The present study was conducted on 50 patients with suspected acute cervical or dorsal spinal trauma presenting for MRI study. American Spinal Injury Association (ASIA) motor score was used for assessing neurological status at the time of presentation, at the time of discharge/2weeks and at 3-6 months follow up. Various MRI qualitative and quantitative parameters were evaluated for correlation with severity of spinal injury.
Results: Normal baseline MRI (pattern 0) was seen in 12 subjects and was associated with incomplete SCI in 4 subjects (ASIA grade D) followed by complete recovery in all patients on follow-up examination. Pattern I (haemorrhage) was associated with complete spinal cord injury. Pattern II (oedema) was associated with incomplete SCI and good functional recovery on follow up.Pattern III (contusion) was associated with intermediate severity of injury. Compression and transection patterns were associated with complete neurological deficit at presentation and increased mortality at subsequent follow-up. All the three quantitative parameters i.e. lesion length,maximum (bony) canal compromise (MCC), maximum spinal cord compression (MSCC) were significantly increased in patients with complete SCI as compared to those with incomplete SCI. The best predictors for baseline ASIA score were MCC, cord oedema and cord haemorrhage. For the final ASIA score, the best predictors were baseline ASIA score and cord haemorrhage.
Conclusion: MRI is excellent imaging modality for detecting and assessing severity of spinal trauma. In our study, presence of cord haemorrhage, MCC and cord oedema were best predictors of baseline neurological status at presentation, whereas baseline ASIA score and cord haemorrhage were best predictors of final neurological outcome.
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| http://dx.doi.org/10.7860/JCDR/2014/9471.5181 | DOI Listing |
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