Anatomical Relations
The interspinous ligaments connect adjacent spinal processes. They extend from the ligamenta flava, anteriorly, to the supraspinous ligament posteriorly, at the apex of the spinous process.
Related parts of the anatomy
Function
These ligaments aid in the stability of the lumbar vertebrae, limit hyperflexion, and reinforce the posterior aspect of the sacrum.
Structure
The deeper fibers of the interspinous ligaments run in an anteroinferior direction, while the more superficial fibers may contain tendinous fibers of the surrounding muscles. In the lumbar region, the interspinous ligaments are thick and quadrangular.
