A majority of the articular surface is formed by the horizontal portion of the distal tibia (the tibial plafond) which extends parallel to the dome of the talus; taken with the medial and lateral malleoli, it forms a rectangular socket known as the ankle mortise.
What is another name for the ankle mortise?
Synonyms: AP mortice view of ankle.
What does intact ankle mortise mean?
Note the mortise is intact: the space surrounding the talus is normal. Credit:
Where is the mortise joint in the ankle?
The ankle joint is made up of two joints: the true ankle joint, which moves the foot up and down, and the subtalar joint, which moves the foot from side to side. The ankle mortise is the “hinge” that connects the ends of the tibia and fibula to the talus.
How do you do a ankle mortise view?
Patient position
the patient may be supine or sitting upright with the leg straightened on the table.the leg must be rotated internally 15° to 20°, thus aligning the intermalleolar line parallel to the detector. internal rotation must be from the hip; isolated rotation of the ankle will result in a non-diagnostic image.
What does mortise mean in medical terms?
A depression, groove, or hole into which another anatomical structure fits.
What is mortise xray?
The joint. On the radiograph, the horizontal portion of the distal tibia parallel to the dome of the talus is the tibial plafond. Taken with the medial and lateral malleoli, it forms a rectangular socket, the ankle mortise (a.k.a. mortice 1).
What are the 3 bones that make up the ankle?
The ankle is a large joint made up of three bones:
The shin bone (tibia)The thinner bone running next to the shin bone (fibula)A foot bone that sits above the heel bone (talus)
What is the mortise view?
The mortise view enables assessment for fractures and spacing of the entire joint surface, including that between the fibula and talus. The distance between the talus and either the fibula or tibia should be equal throughout the joint.
What does widened ankle mortise mean?
Disruption or widening of the normal anatomy is evidence of an unstable injury pattern, and widening of the mortise at the medial malleolus in particular suggests injury to the deltoid ligament.
What is the ankle syndesmosis?
The syndesmosis is a fibrous joint held together by ligaments. It’s located near the ankle joint, between the tibia, or shinbone, and the distal fibula, or outside leg bone. That’s why it’s also called the distal tibiofibular syndesmosis. It’s actually made up of several ligaments.
What makes up the mortise joint?
The malleoli of the tibia and fibula, together with the inferior transverse tibiofibular ligament, form a rectangular socket (mortise) into which the trochlea of the talus fits into. This is why the ankle joint is sometimes referred to as a mortise joint.
What are the 4 ligaments of the ankle?
The major ligaments of the ankle are: the anterior tibiofibular ligament (2), which connects the tibia to the fibula; the lateral collateral ligaments (3), which attach the fibula to the calcaneus and gives the ankle lateral stability; and, on the medial side of the ankle, the deltoid ligaments (4), which connect the
What are the 7 bones in the ankle called?
The tarsal bones are 7 in number. They are named the calcaneus, talus, cuboid, navicular, and the medial, middle, and lateral cuneiforms.
How is mortise taken?
The Mortise-view is an AP-view taken with a 15-25? endorotation of the foot. The technologist turns the foot inwards until the lateral malleolus is at the same height as the medial malleolus. This view visualizes both the lateral and medial joint spaces.
What is the mortise of the foot?
When the foot is plantar flexed, the ankle joint also allows some movements of side to side gliding, rotation, adduction, and abduction. The bony arch formed by the tibial plafond and the two malleoli is referred to as the ankle “mortise” (or talar mortise). The mortise is a rectangular socket.
