Dorsiflexion external rotation test for syndesmotic ankle injury

The dorsiflexion external rotation test is used to help diagnose a syndesmotic ankle injury. To perfrom the test, the injured leg is stabilized by grasping the upper calf or front of the knee with one hand. The other hand grasps the foot, dorsiflexes the ankle to its endpoint, and then gently but firmly externally rotates the foot.