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Medical Terminology
Updated March 2026

Spondylolisthesis

Definition

A condition in which one vertebra slips forward relative to the vertebra below it, which may be caused by a congenital defect, degenerative changes, or traumatic fracture. Spondylolisthesis is graded I through V based on severity and is commonly subject to apportionment analysis between industrial and non-industrial causes.

Related Terms

Frequently Asked Questions

What is a Spondylolisthesis?

A condition in which one vertebra slips forward relative to the vertebra below it, which may be caused by a congenital defect, degenerative changes, or traumatic fracture. Spondylolisthesis is graded I through V based on severity and is commonly subject to apportionment analysis between industrial and non-industrial causes.

Why is spondylolisthesis important in workers' compensation?

Spondylolisthesis is a key medical concept in workers' compensation evaluations. Understanding this term helps physicians document findings accurately and helps attorneys and adjusters evaluate the medical aspects of a claim.