A radiograph of an AP mortise projection of the ankle reveals that the lateral malleolus is slightly superimposed over the talus and the lateral joint space is not open.What is most likely cause for this radiographic outcome?

Question

Quizplus · Accepted Answer

The lateral malleolus being superimposed over the talus and the lateral joint space not being open is indicative of insufficient medial rotation of the foot and ankle. This means that the foot and ankle were not rotated enough towards the center of the body when the radiograph was taken.

A Radiograph of an AP Mortise Projection of the Ankle