What is the standard view for the ankle?
The standard radiographic analysis of the ankle includes three views: the anteroposterior (AP, also sometimes referred to as dorsoplantar or DP) view, the internal oblique (or mortise) view, and the direct lateral view.
What are the basic projections of ankle joint?
An x-ray of the ankle will have three views – AP, mortise, and lateral.
Which view of the ankle is taken routinely when potential trauma or sprains of the ankle joint are involved?
Ankle radiographs are frequently performed in emergency departments, usually, after trauma, the radiographic series is comprised of three views: an anteroposterior, mortise, and a lateral. They may be performed to assess degenerative or inflammatory arthritis as well as to look for the sequela of local infection.
What is mortise view of ankle?
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.
How do you do a lateral view of the ankle?
Patient position
- patient is in a lateral recumbent position on the table.
- the lateral aspect of the knee and ankle joint should be in contact with the table resulting in the tibia lying parallel to the table.
- the leg can be bent or straight.
- foot in dorsiflexion.
What is ankle AP?
The ankle AP view is part of a three view series, and visualizes the distal tibia, distal fibula, proximal talus and proximal fifth metatarsal.
What are the 5 Ottawa ankle rules?
Ottawa Ankle Rules
- 5.1 Reliability.
- 5.2 Accuracy.
- 5.3 Validity.
- 5.4 Clinical Significance.
Which are the 3 most commonly injured ankle ligaments?
The three ligaments that compose the lateral complex are the anterior talofibular (ATFL), the calcaneofibular (CFL), and posterior talofibular (PTFL) and they tend to be injured in this order with the anterior talofibular ligament being injured most commonly.
When do you use mortise view?
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.
Why do we do 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. The distal tibiofibular joint space should be only slightly wider than the mortise joint space.
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 is the ankle mortise?
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.
When should you do ankle pictures?
An Ankle X-ray is only required if: There is any pain in the malleolar zone; and, Any one of the following: Bone tenderness along the distal 6 cm of the posterior edge of the tibia or tip of the medial malleolus, OR.
What is an ankle 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 is mortise in ankle?
Why do we perform arthroscopic tests on the ankle?
They may be performed to assess degenerative or inflammatory arthritis as well as to look for the sequela of local infection. Don’t miss… The ankle is a synovial joint composed of the distal tibia and fibula as they articulate with the talus.
What are the different types of ankle radiographs?
Ankle radiographs are frequently performed in Emergency departments, usually after trauma, the radiographic series is comprised of three views: an anteroposterior, mortise, and a lateral. They may be performed to assess degenerative or inflammatory arthritis as well as to look for the sequela of local infection.
What are the ligaments of the ankle?
The ankle has three main sets of ligaments: The deltoid ligament is much stronger than the ligaments that support the lateral aspect of the ankle and this results in a relative difference between the degree of pronation and supination that can be achieved. The ankle is most at risk of injury when it is pronated or supinated.