腰部脊柱管狭窄症におけるMRI所見 : 腰痛群との比較

概要

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Studies were conducted to know the availability of MRJ in the diagnosis of lumbar canal stenosis (LCS).Seventy six patients of advanced age with low back pain were chosen ; half of the patients showed neurological manifestations in their lower extremities (LCScases) but the remaining half did not (low back pain (LBP) cases). All patients underwent MRJ of the lumbar spine and abnormal imagings were analyzed. The results showed that the following changes could be demonstrated at a high freguency in the cases of LCS as compared with those in LBP ; (1) morphological changes classified as either the Trefoil or the Deficit type in the spinal canal cross section, (2) protrusion and degeneration of the intervertebral disk, (3) brightness changes of endplate, and (4) increasing thickness of the yellow ligament. Individual change did not always correspond to the extent of the neurological manifestation of LCS. However, patients of 92 percent showed the changes of both (2) and (3) in LCS cases. Therefore, lumbar spine MRJ provides useful information in the diagnosis of LCS when the changes are considered with clinical signs of patients.
山口大学医学会の論文