Myeloscopic Study on Lumbar Spinal Canal Stenosis with Special Reference to Intermittent Claudication

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Abstract
Twenty-five cases of lumbar spinal canal stenosis were investigated by dynamic myeloscopy to explain the pathophysiologic mechanism of intermittent claudication, one of the characteristic signs of the disorder. Myeloscopic examination revealed that, in accordance with postural alteration, the diameter of blood vessels on the cauda equinae showed significant changes in many patients in the stenosis group, but showed no changes in control group. In this series, it was suggested that the microcirculatory disturbance of vessels on cauda equinae might play an important role in the development of intermittent claudication.

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