Anterolisthesis: Definition

Spondylolisthesis

A condition when the vertebra slips forward relative to the one below. The amount of slippage is graded on a scale from 1 to 4. Grade 1 is mild (20% slippage), while grade 4 is severe (100% slippage).

Anterolisthesis is a type of spondylolisthesis

Grades of Spondylolisthesis
Grades of Spondylolisthesis