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Spinal Stenosis: Lumbar

Picture of lumbar spinal stenosis
Picture of a normal spinal canal and a narrowed spinal canal (cross section)

When the spinal canal in the low back becomes narrower (stenosis), the nerve roots get squeezed.

Current as of: March 2, 2020

Author: Healthwise Staff
Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Adam Husney, MD - Family Medicine
Kathleen Romito, MD - Family Medicine
Kenneth J. Koval, MD - Orthopedic Surgery, Orthopedic Trauma

 
 

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