1. A series of patients with recent ligamentous injuries of the ankle is presented. Stress radiography and arthrography were carried out in all cases, with surgical exploration where indicated. The findings are correlated.

2. Both stress radiography and arthrography are unreliable in the diagnosis of injuries to the "lateral ligament" of the ankle.

3. Arthrography may be useful in the demonstration of injury of the inferior tibio-fibular joint and of the medial ligament.