胸腰段骨折与脊髓损伤的MRI改变及临床意义(附34例报告)

Clinical significance of the MRI changes in patients with thoracolumbar fracture and spinal cord injury

探讨胸腰段骨折与脊髓损伤的MRI改变及临床意义。本组34例，男32例，女2例，平均30岁。该损伤MRI改变主要为：受累节段推体压缩、移位，连同骨折的椎板在椎管内形成信号减弱的致压物。受压脊髓弯曲、变形、移位，甚至连续性中断，脊髓受累节段及其上下出现异常信号。这些改变直接反应了外伤后脊柱、脊髓损伤的程度。作者对脊髓损伤后MRI改变进行了分析，认为MRI对胸腰段骨折脊髓损伤的恢复判定有重要参考价值。

Thirty-four patients of thoracolumbar fracture with spinal cord injury were studied with MRI. There were 32 males and 2 females,with an average age of 30 years. The characteristic MRI features were that the abnormal signals were caused by the compressive mass formed by fractures and displacement of involved vertebral body and laminae in the vertebralis canal,which induced arcuation,translocation and interruption of spinal cord. The results showed that MRI clearly delineated the degrees of spine and spinal cord injuries. It is concluded that MRI is valuable for the judgment of recovery of spinal cord injury caused by thoracolumber fracture and dislocation.