Vertebro-pelvic ligaments

Vertebro-pelvic ligaments are bands connecting the vertebrae of the spine with the pelvis, which stabilize mainly the lumbosacral joint.

The main ligaments supporting and holding the bony pelvis together are:


Ischiosacral ligaments

Ischiosacral ligaments stretch between the ischium and sacrum, and include two very important ligaments -  sacrospinous ligament and sacrotuberous ligament

They aid in maintaining the sacrum in its anatomical position at rest and during exercises. Both ligaments also prevent rotation of the ilium and provide stability to the sacroiliac joint. 

The ischiosacral ligaments create two openings in the pelvis: