Annular ligament of radius
(Redirected from Ligamentum anulare radii)
Annular Ligament of Radius[edit | edit source]
The Annular Ligament of Radius 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 mobility of the elbow joint.
Anatomy[edit | edit source]
The annular ligament is a circular band of connective tissue that wraps around the head of the radius, securing it to the ulna. It forms a collar around the radial head and allows for rotation of the radius during pronation and supination of the forearm.
Function[edit | edit source]
The primary function of the annular ligament is to hold the radius in place, allowing it to rotate during forearm movements. This ligament also helps to prevent dislocation of the elbow joint.
Clinical Significance[edit | edit source]
Injury to the annular ligament can lead to a condition known as Nursemaid's elbow, also known as radial head subluxation. This is a common injury in children and occurs when the annular ligament slips over the head of the radius, causing the bone to dislocate.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD
