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KMID : 1103720160750030185
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Journal of the Korean Society of Radiology
2016 Volume.75 No. 3 p.185 ~ p.190
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CT Findings Predictive of Neurological Deficits in Thoracolumbar Burst Fractures
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Moon Tae-Yong
Jeong Hee-Seok
Lee In-Sook
Jeong Yeo-Jin
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Abstract
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Purpose: To determine the computed tomography (CT) findings predictive of neurological deficits in thoracolumbar spine injuries.
Materials and Methods: One hundred two patients with thoracolumbar spinal burst fractures, after excluding the patients with brain and cervical cord injuries and unconsciousness, who underwent consecutive spine 128-multidetector CT scan formed the study group. The neurological findings were clinically classified as no deficit (n = 58), complete deficit with paraplegia (n = 22), and incomplete deficit with either motor or sensory impairment (n = 22). The following four CT imaging parameters were analyzed: the level of the main burst fracture as the cord (n = 44) and the cauda equina (n = 58) levels; the extent of canal encroachment as central canal ratios (CCRs) below 0.5 (n = 43) and above 0.5 (n = 59); the degree of laminar fracture as no fracture (n = 33), linear fracture (n = 7), separated fracture (n = 27), and displaced fracture (n = 35); fractured vertebra counted as single (n = 53) and multiple (n = 49).
Results: Complete neurological deficit was associated with injuries at the cord level (p = 0.000) and displaced laminar fractures (p = 0.000); incomplete neurological deficit was associated with CCRs below 0.5 (p = 0.000) and multiple vertebral injuries (p = 0.002).
Conclusion: CT scan can provide additional findings predictive of neurological deficits in thoracolumbar spinal burst fractures.
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KEYWORD
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Spinal Injuries, Neurological Disorders, Computed Tomography, Thoracic Vertebrae, Lumbar Vertebrae
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