Spinal stenosis is a condition that affects the joints in the neck and the spine, particularly the lower back. When someone has spinal stenosis, the innermost space within the bones (vertebra) of the spinal column become more narrow.
The vertebra protects your spinal cord, so the hole in the middle of these bones is where the spinal cord, or nerve roots/spinal nerves, pass through. When degenerative changes take place these holes are narrowed which leads to pressure on the spinal nerve roots.
Compression of the nerves leads to a range of other issues that can be increasingly painful and harmful over time. When spinal stenosis occurs in the neck, it is called cervical spinal stenosis since the bones are located in the cervical spine.
When this condition impacts the lower back, it is named after the lumbar spine and called lumbar spinal stenosis. While both require treatment, lumbar spinal stenosis is more common.