What is the role of the supraspinous ligament?

The role of the supraspinous ligament is primarily to resist flexion and, to some extent, rotation of the spine. It runs along the tips of the spinous processes from the sacrum to the cervical region. This ligament provides support and stability to the vertebral column, acting as a limiting factor against excessive forward bending (flexion) of the spine. By maintaining alignment, it helps protect the spinal cord and surrounding structures from injury during movements that involve bending or twisting.

Additionally, while other ligaments may play a role in stabilizing the cervical spine or connecting the laminae of the vertebrae, the specific function of the supraspinous ligament as a primary resistive force against flexion makes it distinct in its role. Understanding the unique function of the supraspinous ligament in spinal mechanics is essential for recognizing its importance in overall spine health and movement dynamics.