Plantar Interphalangeal Ligaments (Proximal; Right)
Ligamenta interphalangeal plantaria
Read moreStructure
The proximal plantar interphalangeal ligaments are thick, dense, fibrocartilaginous bands, or plates, found on the plantar surface of the interphalangeal joints. They attach to the heads of the proximal phalanges and the bases of the middle phalanges.
Related parts of the anatomy
Anatomical Relations
The plantar interphalangeal ligaments blend with the collateral ligaments.
Function
The plantar interphalangeal ligaments help increase the articulation area for the base of the phalanx and limit the degree of extension at the interphalangeal joint. They also reinforce the articular capsule surrounding the interphalangeal joints.
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Long Plantar Ligament
The LPL originates from the calcaneus, closely adheres to this bone, and inserts distally on the plantar surface of the fourth tarsal bone and the MtIV.
