Atypical lumbar extension. Note that all the extension occurs in the low back.
Atypical extension of the lumbar spine.
This patient is is the “cobra” position, hyperextending the lumbar spine, exaggerating the problem.
The same patient in hyperextension. Note all motion occurring in the lowest five segments.
Flexion in the lumbar spine is nearly absent in patients like this. Noted hyperflexion of the thoracic spine.
Lumbar Stenosis