Interosseous sacroiliac ligament

The Interosseous Sacroiliac Ligament is a part of the human skeletal system. Image courtesy of Wikimedia Commons.

The Interosseous Sacroiliac Ligament is a significant component of the human skeletal system. It is a strong ligament that connects the sacrum and the ilium of the pelvis, providing stability and support to the sacroiliac joint.

Anatomy

The Interosseous Sacroiliac Ligament is located deep within the sacroiliac joint, filling the irregular space between the articular surfaces of the sacrum and ilium. It is composed of numerous short, strong fibrous bands that run vertically, connecting the tuberosities of the sacrum and ilium.

Function

The primary function of the Interosseous Sacroiliac Ligament is to provide stability to the sacroiliac joint. It restricts the movement of the sacroiliac joint, preventing excessive motion that could lead to injury. It also plays a role in transmitting weight from the spine to the pelvis and lower limbs.

Clinical Significance

Dysfunction or injury to the Interosseous Sacroiliac Ligament can lead to sacroiliac joint dysfunction, a common cause of lower back pain. Treatment options for such conditions may include physical therapy, medication, or in severe cases, surgery.

See Also

• Sacroiliac joint
• Ligament
• Pelvis