HIVD vs Spinal Stenosis

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, and protects the spinal cord, nerves, and many important organs. The bones (vertebrae) in the spine are separated by shock absorbers known as discs. Much like a tire, discs are subject to wear and tear. Discs often degenerate with age causing vertebrae to sit closer together. This is part of the reason we shrink with age. Degenerative discs can lead to pain via multiple pathways.
Spinal stenosis is another condition of the spine where the central canal diameter is reduced much like a pipe that becomes clogged. When this occurs the nerves are compressed causing pain not only in the back but often in the legs as well. Patients with spinal stenosis can have leg pain with walking and better at rest known as neurogenic claudication. Additionally, spinal stenosis patients often get pain relief by bending forward when they walk. This position is the one we assume when pushing a shopping cart. In fact, when a patient with spinal stenosis gets relief by resting on a shopping cart we call that the “shopping cart sign”. 
 
https://www.glaserpainrelief.com/blog/is-degenerative-disc-disease-the-same-as-spinal-stenosis

Is Degenerative Disc Disease The Same As Spinal Stenosis?: Glaser Pain Relief Center: Interventional Pain Management Specialists