![]() Mortise view: this is a modified anteroposterior (AP) view of the ankle in 10-20° internal rotation so that the medial and lateral malleoli are in the same horizontal plane and joint visualisation is optimised.In the United Kingdom, two views of the ankle joint are routinely performed: Patient details (name, date of birth, unique identification number).It is important to confirm the following details: Principles of ankle X-ray interpretation Demographicsīegin by checking that you are looking at the correct radiograph of the correct patient. Mortise radiograph of the left ankle showing the bones and ligaments (added in yellow) of the ankle joint. ![]() For more information, see the Geeky Medics guides to the bones of the lower limb and the bones of the foot. The ankle joint allows dorsiflexion and plantarflexion and is one of the weight-bearing joints. A mortise and tenon joint in carpentry 1įurther reinforcement of the ankle joint is provided by a strong fibrous complex between the distal tibia and fibula called the syndesmosis, and the medial (or deltoid) and lateral ligaments which arise from the medial and lateral malleolus respectively. This comes from the similarity to the mortise and tenon joint used in carpentry to create stable connections (Figure 1). Proximally, the joint comprises the medial malleolus (the distal end of the tibia), the tibial plafond and the lateral malleolus (the distal end of the fibula) which collectively form a rectangular socket called the mortise into which fits the talar dome distally. The ankle is a hinge joint formed by three bones: the tibia, the fibula and the talus.
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