trochlea of the talus

troch·le·a of the ta·lus

[TA]
the rounded superior articular surface of the talus that articulates with the distal ends of the tibia and fibula.
Synonym(s): trochlea tali [TA], pulley of talus
References in periodicals archive ?
This movement places the ankle into its most stable position, when the trochlea of the talus and the articular surfaces of the tibia and fibula are "close-packed.