What is another name for the ankle mortise?
Synonyms: AP mortice view of ankle.
What is a mortise joint anatomy?
The two bones of the lower leg, the large tibia and the smaller fibula, come together at the ankle joint to form a very stable structure known as a mortise and tenon joint. The two bones that make up the back part of the foot (sometimes referred to as the hindfoot) are the talus and the calcaneus, or heelbone.
How is mortise view of ankle?
The AP mortise view is done with the leg internally rotated 15-20o so that the x-ray beam is perpendicular to the inter-malleolar line. This view permits examination of the articular space (clear space).
What does intact ankle mortise mean?
Note the mortise is intact: the space surrounding the talus is normal. Credit: http://www.footeducation.com/stable-ankle-fracture.
Where is the mortise in the ankle?
Together, the three borders (listed below) form the ankle mortise. The superior portion of the ankle joint forms from the inferior articular surface of the tibia and the superior margin of the talus.
What is the best projection to demonstrate the mortise joint?
Bontrager Ch 6 Self Test Questions
| Question | Answer |
|---|---|
| Where is the central ray placed for a plantodorsal axial projection of the calcaneus? | Base of the third metatarsal |
| Which ankle projection is best for demonstrating the mortise of the ankle? | AP Oblique (15 to 20 degree medial rotation) |
How do you do 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.
What is a mortise in medical terms?
A depression, groove, or hole into which another anatomical structure fits.
What is the purpose of mortise view?
The mortise view is key to assessing the structural integrity of the ankle. The entire mortise joint space adjacent to the talar dome should be of uniform width.
What does mortise mean in medical terms?
depression
A depression, groove, or hole into which another anatomical structure fits.
What is the difference in structures best demonstrated on a mortise view of the ankle versus a 45 degree AP oblique of the ankle?
Terms in this set (39) The entire leg and foot should be rotated 15-20 degrees medially for a mortise projection of the ankle. A 45 degree AP oblique with medial rotation best demonstrates a possible fracture of the lateral malleolus.
What are the ankle ligaments?
Ankle ligaments are like cords that connect the foot bones with the lower leg bones. They stabilize the ankle joint and prevent the ankle from twisting, folding or collapsing. An ankle ligament can overstretch or tear, called a sprain. Ankle sprain is a very common injury and can range from mild to severe.