What is the purpose of the ligamentum flavum?

The ligamentum flavum plays a crucial role in maintaining spinal stability and function. Its primary function is to limit excessive flexion of the spine. This ligament connects adjacent vertebrae and is located between the laminae of the vertebrae in the spinal column. When the spine flexes, the ligamentum flavum becomes taut, which helps to control the amount of flexion that occurs. By preventing extreme forward bending, it aids in protecting the integrity of the intervertebral discs and maintaining the alignment of the vertebral column.

Additionally, this function is essential for facilitating normal movement patterns and contributing to the overall biomechanics of the spine. The ligamentum flavum, along with other spinal ligaments, helps ensure that the spinal cord and surrounding structures are adequately supported during various activities, thus improving resilience against potential injury.