Anular ligament of radius
Anular Ligament of Radius
The Anular Ligament of Radius (also known as the Annular Ligament) is a strong band of fibers that encircles the head of the radius bone in the forearm. This ligament plays a crucial role in the stability and flexibility of the elbow joint.
Anatomy[edit | edit source]
The Anular Ligament of Radius is a circular band of connective tissue that wraps around the head of the radius, securing it in the radial notch of the ulna. It forms a pivot for the rotation of the radius, allowing for pronation and supination of the forearm.
Function[edit | edit source]
The primary function of the Anular Ligament of Radius is to maintain the stability of the radial head within the elbow joint. It allows the radius to rotate during pronation and supination, while keeping the radial head in contact with the ulna.
Clinical Significance[edit | edit source]
Injury to the Anular Ligament of Radius can lead to a condition known as Nursemaid's elbow, which is a common injury in children. This occurs when a sudden pull on the extended pronated forearm causes the radial head to slip under the anular ligament.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD
