1-10. THE ANTERIOR POSTERIOR ANKLE
a. Introduction. The ankle is probably the most frequently injured site of the
lower extremity. Fortunately it is usually just sprained or strained severely, not actually
fractured. Even so, a great deal of pain and discomfort are associated with an ankle
injury. Since the ankle is a joint with various anatomical structures, correct positioning
and exposure techniques are essential to properly demonstrate the structures and joint
b. Anatomical Structures Demonstrated. The distal leg view demonstrates
the tibia and the fibula.
c. The Tarsal Bones. The three bones that make u p the ankle joint are the
talus, tibia, and fibula.
d. The Three Articulations of the Ankle.
(1) Ankle mortise--arch-like structure formed by the medial malleolus, lateral
malleolus and the superior articular surface of the talus.