융요적추 파열성골절의 신경학적 결입을 예측하는 CT 검사 소견. (Korean)

CT Findings Predictive of Neurological Deficits in Thoracolumbar Burst Fractures. (English)

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 in = 43) and above 0.5 (r? = 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 ip = 0.000) and displaced laminar fractures ip = 0.000); incomplete neurological deficit was associated with CCRs below 0.5 ip = 0.000) and multiple vertebral injuries ip = 0.002). Conclusion: CT scan can provide additional findings predictive of neurological deficits in thoracolumbar spinal burst fractures. [ABSTRACT FROM AUTHOR]

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