A member asked:

What is grade 1 retrolisthesis of l5 on s1 with mild bilateral foraminal narrowing?

A doctor has provided 1 answer
Dr. Peter Schmidt answered

Specializes in Pain Management

XRay findings: This means that your L5 vertebral body has moved slightly backwards over S1. Grade 1 means it is mild. The foramina are holes in the vertebrae wear the nerves exit. They can become narrowed with arthritis, etc. "Mild" indicates that this should probably not be causing symptoms.

Answered 11/2/2019

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L5-S1:What does 2mm retrolisthesis; nonneurally compressive mean?

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