Intertransverse Ligaments

ligamentum

The intertransverse ligaments connect adjacent transverse processes throughout the spine, limiting lateral flexion. They are thin and poorly defined in the lumbar spine but better developed in the thoracic spine where they contribute to thoracic rigidity. In the cervical spine they are replaced by the intertransverse muscles. The lateral approach to the lumbar spine (XLIF, DLIF) traverses the intertransverse space between these ligaments to access the disc.

Region: Spine

Anatomical Data

Origin, Insertion & Supply

Origin	Inferior border of each transverse process
Insertion	Superior border of the adjacent transverse process below

Biomechanics

Function & Actions

Actions	Limits lateral flexion; mild contribution to rotational stability

Clinical Relevance

Clinical Notes

The intertransverse ligament and associated fat represent the tissue in the intertransverse space that must be traversed during lateral lumbar interbody fusion approaches. Their disruption during lateral lumbar approaches can allow the accessing retractor system to contact neural elements in the lumbar plexus.

Pathology

Common Injuries & Conditions

Lateral Lumbar Approach

Intertransverse ligament traversal during XLIF/LLIF access requiring careful technique to avoid lumbar plexus injury in the space between processes.