Lumbar spinal stenosis is difficult to explain and understand, so we’ve created a new video to offer a clear visualization of the condition and its symptoms.

Watch: Lumbar Spinal Stenosis Video

Lumbar Spinal Stenosis Watch our latest animated video: Lumbar Spinal Stenosis Video

Highlights illustrating spinal stenosis:

Lumbar spinal stenosis affects the nerves housed within the lumbar spine. As you can see above, each lumbar vertebra has a space in the middle, or spinal canal, through which these nerve bundles travel.

See Lumbar Spine Anatomy and Pain

Stenosis and Foramen

Nerve roots extend off of the spinal canal on either side through a space at the back of the vertebrae known as the foramen.

See Spinal Cord and Spinal Nerve Roots

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In a healthy spine, both the nerve bundle and the nerve roots are afforded plenty of room within the spinal canal and foramen.

Bone Spurs in the Foramen

In individuals with lumbar spinal stenosis, degenerative changes such as bone spurs can restrict the space that the nerve bundles have within the spinal canal, putting pressure on the nerves.

See Bone Spurs (Osteophytes) and Back Pain

Stenosis and Nerve Roots

Bone spurs can also impinge on the nerve root, narrowing the amount of space available for it.

Stenosis and Nerve Roots

Common symptoms of lumbar spinal stenosis include weakness or pain that travels from the lower back down the leg.

See Lumbar Radiculopathy and Leg Pain and Numbness: What Might These Symptoms Mean?

Now that you have a visual understanding of how lumbar spinal stenosis can develop, take a look at how the condition is diagnosed, treated and managed.

See Spinal Stenosis Symptoms and Diagnosis

See Living with Lumbar Spinal Stenosis

See Lumbar Spinal Stenosis Treatment

See Lumbar Spinal Stenosis Surgery Options

Learn more:

Spinal Anatomy and its Effects on Types of Spinal Stenosis

Types of Spinal Stenosis Surgery