下垂足を主訴とした脳脊髄疾患の検討

概要

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Drop foot occurs commonly by peroneal nerve palsy, however it is generated to any portion from a brain to a peripheral nerve. We investigated 8 patients (Male 7, female 1) with drop foot from April, 2003 to December, 2003. The cause was brain tumor in 2 patients (superior frontal gyrus astrocytoma : 1, parasagittal meningioma : 1), ossification of yellow ligament (OYL) of thoracic level in 2 patients (Th11/12:2), lumbar disc herniation in 3 patients (L4/5:3) and lumbar canal stenosis in 1 patient (L4/5). The period from initial symptoms to a definite diagnosis were 2.5 and 3 years in brain tumor, 4 and 5 years in thoracic OYL, several days or during follow-up in lumbar disorders. In brain and spinal epiconus disorders, there was a tendency for delayed diagnosis. Although the cause of drop foot are dominantly peroneal nerve palsy and lumbar disorders, it was considered that rare causes such as brain and spinal epiconus disorders should be included in the differential diagnosis of drop foot.
日本脊髄外科学会の論文