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Quadrate Ligament
Connective Tissue

Quadrate Ligament

Ligamentum quadratum articulationis cubiti

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Anatomical Relations

The quadrate ligament attaches from the distal margin of the radial notch of the ulna to the neck of the radius. It extends over the synovial membrane on the distal surface of proximal radioulnar joint.

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Structure

The quadrate ligament of the elbow joint is much thinner than the annular ligament of the elbow joint but is more fibrous.

Function

The quadrate ligament of the elbow joint helps secures the head of the radius to the ulna. It additionally resists excessive supination and pronation of the forearm (Tubbs et al., 2006).

References

Tubbs, R. S., Shoja, M. M., Khaki, A. A., Lyerly, M., Loukas, M., O'Neil J, T., Salter, E. G. and Oakes, W. J. (2006) 'The morphology and function of the quadrate ligament', Folia Morphol (Warsz), 65(3), pp. 225-7.

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