Ligamentum flavum

Ligamentum Flavum

The Ligamentum Flavum (or yellow ligament) is a ligament that connects the vertebrae of the spinal column. It is one of the many ligaments that contribute to the stability and flexibility of the spine.

Anatomy

The Ligamentum Flavum is a broad and short band of yellow elastic tissue that connects the laminae of adjacent vertebrae, from the axis to the sacrum. It is thicker in the lower back (lumbar spine) and thinner in the neck (cervical spine). The ligamentum flavum serves to preserve the upright posture, and to assist the vertebral column to resume it after flexion.

Function

The primary function of the Ligamentum Flavum is to provide a flexible connection between the vertebrae, which allows for movement while also maintaining the alignment of the spinal column. It also helps to protect the spinal cord and nerve roots.

Clinical Significance

In certain conditions such as spinal stenosis, the Ligamentum Flavum can become thickened and cause compression of the spinal cord or nerve roots, leading to symptoms such as pain, numbness, or weakness. Treatment may involve physical therapy, medication, or in severe cases, surgery.

See Also

• Spinal column
• Vertebrae
• Ligament
• Spinal stenosis