Accessory Collateral Metacarpophalangeal Ligaments
Ligamenta metacarpophalangea collateralia accessoria
Read moreAnatomical Relations
The accessory collateral metacarpophalangeal ligaments are fan-shaped, triangular fibrous bands that attach to each side of the metacarpophalangeal joint, holding the joint firmly in place. They extend obliquely from the anterior tubercle on the lateral surface of the metacarpal heads to the lateral margin of the palmar ligaments of the metacarpophalangeal joint (Lourie, Gaston and Freeland, 2006).
Function
Each accessory collateral ligament, along with proper collateral ligaments, act as primary stabilizers of the metacarpophalangeal joint.
References
Lourie, G. M., Gaston, R. G. and Freeland, A. E. (2006) 'Collateral ligament injuries of the metacarpophalangeal joints of the fingers', Hand Clin, 22(3), pp. 357-64, viii.
