The Sacroiliac Joint [Part 2] | Factors Affecting Stabilization

The video explores the stability of the sacroiliac (SI) joint, emphasizing its crucial role in supporting the body's weight. It explains the concepts of form and force closure, which contribute to the joint's stability, and compares the SI joint's interlocking mechanism to Legos. The video also covers the limited mobility of the SI joint, highlighting movements like nutation and counter nutation, and the ligaments that restrict these movements. The importance of maintaining stability to prevent dislocation and dysfunction is underscored.

How does the size of the SI joint affect its stability?

Explain how the arrangement of muscles contributes to the stability of the SI joint.

Discuss the significance of the interlocking mechanism of the SI joint.

What are the implications of having increased mobility in the SI joint?