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脊柱管狭窄症

Spinal canal stenosis

骨(bone)や靭帯(ligament)が厚くなったり、椎間板が出てくることで脊柱管が狭くなって、脊髄(spinal cord)が圧迫(pressure)されて腰の痛みや足のしびれ(numbness)などの症状が起こる病気のこと。

This refers to a disease where, because of a thickening in the bones and/or ligaments and because of the invertebral discs’ protruding (sticking out)* causing the spinal canal to become narrower, the pressure (generated by these)* on the spinal cord causes symptoms like lower back pain and/or numbness in the legs, and so on.