The posterior sacroiliac ligament is situated in a deep depression between the sacrum and ilium behind; it is strong and forms the chief bond of union between the bones.

It consists of numerous fasciculi, which pass between the bones in various directions.

This article incorporates text in the public domain from page 307 of the 20th edition of Gray's Anatomy (1918)

This ligament-related article is a stub.

You can help Wikipedia by expanding it.