APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The sacrotuberous ligament (4) is located at the inferior-posterior part of the pelvis and runs from sacrum to the ischial tuberosity. The sacrospinous ligament’s (3) attachment is behind that of the sacrotuberous ligament, and it connects the outer edge of the sacrum and coccyx to the ischia of the ilium.

Detailed explanation-2: -The interosseous sacroiliac ligament forms the major connection between the sacrum and the ilium. It is the strongest ligament in the body and prevents anterior and inferior movement of the sacrum.

Detailed explanation-3: -The sacrotuberous ligament (STL) is a stabiliser of the sacroiliac joint and connects the bony pelvis to the vertebral column. Is in the shape of a fan located in the posterior pelvis, on both sides and connects the sacrum to the iliac tuberosities.

Detailed explanation-4: -The interosseous sacroiliac ligament, also known as the axial interosseous ligament, is a ligament of the sacroiliac joint that lies deep to the posterior ligament.

Detailed explanation-5: -Interosseous sacroiliac ligament: a short but very strong band that spans the gap between the sacrum and ilium on the posterior side of the joint by attaching on their tuberosities, just behind the auricular surfaces. Occasionally, one or two accessory joint cavities can be identified within the ligament.