Plain Radiography of the Ankle and Foot
- An ankle x-ray series usually consists of AP, lateral and mortise views. The fifth metatarsal distal to the tuberosity should be seen in at least one projection.
- The presence of an ankle effusion is best appreciated on the lateral view and is an important finding because it increases the likelihood of an occult fracture.
- In one study the presence of an ankle effusion correlated with the presence of an occult fracture in between 35% and 85% of patients, depending on the actual size of the effusion. 4
- A foot x-ray series usually consists of AP, oblique and lateral views.
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