Corpus3D

Spine

Spondylolisthesis

Mechanism
Forward slippage of one vertebra over the one below, usually L5 over S1. In young people from a stress fracture of the pars interarticularis, in older people from degeneration of facet joints and disc.
Recognition
Low back pain increasing on extension and prolonged standing, sometimes with radiation. With a larger slip a step is palpable between two spinous processes.
Course
In young athletes in extension sports it is an important cause of persisting back pain and warrants imaging. In older people the degree of slip is a weak predictor of complaints.

Structures

Joints involved

Clinical tests

Sources