What Does Retrolisthesis Mean on a Spine X-Ray or MRI?

Short answer: retrolisthesis means one spinal bone is positioned slightly backward compared with the bone next to it. The word can sound alarming, but the clinical importance depends on the level, degree, stability, and whether symptoms match.

What the wording usually describes

Radiology reports may mention retrolisthesis along with disc narrowing, arthritis-type change, foraminal narrowing, or stenosis. Some alignment findings are mild and longstanding; others may matter when they fit mechanical pain, nerve symptoms, or a change from prior imaging.

Details that make the finding more or less important

which spinal level is listed and whether the finding is mild or more advanced
whether pain is mainly in the neck or back or travels into an arm or leg
whether standing, bending, extension, or sitting changes the symptoms
whether there is numbness, tingling, weakness, or balance change
whether prior imaging showed a similar alignment finding

How to discuss it at a pain visit

Bring the report and describe what the pain does during real activities. The practical question is whether the alignment phrase changes the safest next step. New weakness, bowel or bladder changes, fever, significant trauma, or rapidly worsening neurologic symptoms should be addressed promptly.

Related PSG resources: lower back pain, neck pain, and pain management.

Sources include NIAMS - Back Pain, AAOS OrthoInfo - Low Back Pain, NINDS - Low Back Pain Fact Sheet patient education on back pain, neck pain, chronic pain, imaging context, and neurologic warning symptoms. This article is educational and cannot diagnose the cause of pain from an imaging phrase alone.

Author