Sacroiliac Ligament Posterior Long

The long posterior sacroiliac ligament (l. sacroiliacum posterius longum) is the connective tissue that connects the sacrum to the ilium. It is part of the sacrotuberous ligament and is involved in maintaining the stability of the sacrum and pelvis.

The long posterior sacroiliac ligament consists of two parts: the sacrospinous and sacro-pubic. The sacrospinous part connects the sacral horns with the spinous processes of the sacral vertebrae, and the sacro-pubic part connects the anterior surface of the sacrum with the iliac crest.

The function of the long sacroiliac ligament is to provide stability to the sacropelvic joint and prevent displacement of the sacrum relative to the iliac crest. In addition, it is involved in supporting body weight and ensuring the correct position of the hip joint.

With injuries or diseases associated with the sacrolumbar spine, dysfunction of the transverse sacroligament may occur. This can lead to lower back pain, stiffness and other symptoms. In such cases, it is recommended to consult a doctor for diagnosis and treatment.

Overall, the long posterior sacroiliac ligament plays an important role in maintaining the health of the sacrolumbar spine and hip joints. Therefore, it is necessary to take care of its health and maintain its proper function.



An important back muscle is called the **Sacropelvic ligament**. It connects the sacrum to the pelvis and is involved in the formation of the acetabulum and hip joint. The posterior ligament is fixed to the last lumbar vertebra.

The posterior sacral ligament performs an important function - it forms the acetabular (that