https://youtu.be/SNWt4f0F7GI?t=237 HIVD: intervertebral disc가 bulging된 것. 보통 허리 구부리면 통증 악화. Spinal stenosis: (due to a variety of factors including disc degeneration, bone spur formation, and disc herniation.) spine 통로가 좁아진 것. 크게 central canal stenosis와 foraminal(lateral) stenosis가 있다. 보통 허리 구부리면 통증 완화. The spine is important as it provides support and structure to the body, enables movement, an..