What is the ankle mortise view?
What is the ankle mortise view?
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.
Why is mortise seen on ankle?
The most common indication is a trauma to the ankle in the setting of suspected ankle fractures and/or dislocations including talar fractures. Other indications include: assessment of fragment position and implants in postoperative follow up. evaluation of fracture healing.
What is disruption of ankle mortise?
When the mortise is disrupted by a fracture, the talus is free to move more than it should. This abnormal motion leads to focal pressure points which can be damaging.
How do you get a 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.
How bad is a fractured ankle?
If just one bone is broken, you may not realize how bad the injury is. But if multiple bones break at once, you will lose stability in your ankle and may not be able to walk. An ankle fracture can also lead to ligament damage.
What is another name for the ankle mortise?
The bony arch formed by the tibial plafond and the two malleoli is referred to as the ankle “mortise” (or talar mortise).
Is the distal fibula part of the ankle?
The ankle is a pseudo-ball-and-socket joint; the talus is the ball and the distal tibia and fibula act as the socket. This socket is only functional because the tibia (medial and posterior malleolus) and fibula (lateral malleolus) are held together tightly by the syndesmosis.
What does the ankle mortise is congruent mean?
What does the ankle mortise is congruent mean? “Undisplaced” means the talus is congruent in the mortise, although there may be small amounts of displacement of malleolar fragments. In the majority of these there is sufficient deep deltoid ligament function to prevent displacement.
Where is the mortise located on the ankle?
The ankle mortise is the “hinge” that connects the ends of the tibia and fibula to the talus. Significance The true ankle joint is made up of the tibia, which is on the inside, the fibula on the outside and the talus, which is the underneath part of the joint.
How does the mortise affect range of motion?
The mortise is beneficial to the range of motion of the ankle. The ankle goes up and down in the mortise, forming a pivot. Ankle injuries happen when the foot rolls onto the outside of the ankle. Ankles are prone to this type of injury because of the small size of the joint in comparison to the leg and foot.
Is the tibial dome above or below the mortise?
The tibial dome is above the mortise. Two tough ligaments support the mortise. The cylindrical shape of the ankle bone rolls within the mortise. The mortise is beneficial to the range of motion of the ankle. The ankle goes up and down in the mortise, forming a pivot. Ankle injuries happen when the foot rolls onto the outside of the ankle.