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Radioscaphocapitate Ligament
Connective Tissue

Radioscaphocapitate Ligament

Ligamentum radioscaphocapitatum

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Anatomical Relations

The radioscaphocapitate ligament forms part of the palmar radiocarpal ligament. It attaches proximally to the styloid process and palmar lip of the radius. It extends distally as three parts. The radial part inserts onto the narrow aspect of the scaphoid bone; the middle part attaches to the more distal surface of the scaphoid bone; and the ulnar part passes over the scaphoid to the capitate and blends with the fibers of the palmar ulnocarpal ligaments, namely the ulnocapitate ligament (Netter, 2011).

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Function

The palmar radiocarpal ligament strengthens the articular capsule of the radiocarpal joint. The oblique nature of the ligaments ensures that the hand follows the radius during supination of the forearm (Moore et al., 2013).

References

Moore, K. L., Dalley, A. F. and Agur, A. M. R. (2013) Clinically Oriented Anatomy. Clinically Oriented Anatomy 7th edn.: Wolters Kluwer Health/Lippincott Williams & Wilkins.

Netter, F. H. (2011) Atlas of Human Anatomy. Netter Basic Science Series: Saunders/Elsevier.

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