Ankle testing. Ottowa Rules, The anterior drawer and talar tilt tests, syndesmosis and deltoid ligaments.

In the acute setting, ankle X-ray are indicated if there is bony tenderness according to the Ottawa Ankle Rules or if the patient is unable to bear weight both immediately following the injury and at the time of the subsequent clinical assessment. Followed correctly, the Ottawa Ankle Rules detect all clinically significant fractures (100% sensitivity).

Skærmbillede 2016-03-01 kl. 09.41.56

Other views of the ankle that can be useful include:

  • Anterior or posterior impingement views. These are lateral views in plantarflexion (for posterior) or dorsiflexion (for anterior impingement) that help determine the degree to which bony factors contribute to ankle impingement.
  • Weight-bearing views. These help in assessing articular cartilage loss, subluxation at the ankle joint, and diastasis (widening) of the distal tibiofibular syndesmosis.
  • Lazy lateral view. The lateral malleolus is projected behind the medial malleolus. The lateral tubercle of the posterior process of the talus, or os trigonum is profiled.
  • AP view of the proximal fibula. This view should be used whenever a Maisonneuve fracture is suspected.
  • Stress views with inversion, eversion and anterior drawer stress views may highlight ligamentous instability.

Impingement

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