[Normal and post-traumatic radiographic morphology of the subtalar joint]

The normal and post-traumatic appearances of the sub-talar joints are illustrated by means of a number of arthrograms. Special projections were used in order to demonstrate various parts of the joints. The mobility of the articulating bones and its relationship to the trabecular structure has been demonstrated. The mechanism of typical injuries in normal limbs, and in the presence of pes planus, is described. Radiological features of capsular injuries of the sub-talar joint have been studied by arthrography.