Cervical Ligamentum Flavum

ligamentum flavum cervicale

The cervical ligamentum flava are paired elastic bands connecting adjacent laminae throughout the cervical spine, forming the posterior wall of the spinal canal at each cervical level. They are thinner and more elastic than their lumbar counterparts.

Region: Neck

Biomechanics

Function & Actions

Maintain spinal canal dimensions during cervical extension, resist excessive flexion, and provide the elastic element that assists cervical spine recoil after flexion. Their yellow colour reflects the high elastin content.

Clinical Relevance

Clinical Notes

Cervical ligamentum flavum hypertrophy (from degeneration, ossification, or folding during extension) reduces the posterior spinal canal, contributing to cervical spondylotic myelopathy. Laminectomy or laminoplasty removes or elevates the ligamentum flavum to decompress the canal. Ossification (OLF) is more common at thoracic levels but occurs cervically in some patients.

Pathology

Common Injuries & Conditions

Cervical Ligamentum Flavum Hypertrophy

Thickening and buckling of the cervical ligamentum flavum during extension reducing posterior spinal canal space and contributing to dynamic myelopathy.

Cervical Laminoplasty for Flavum Decompression

Door-open or French door laminoplasty creating space for the ligamentum flavum to expand posteriorly, relieving pressure on the cervical spinal cord.