Ankle Anatomy and X-ray Views

Dr. Morton explains the anatomy visible in ankle x-rays, focusing on the AP, mortise, and lateral views. The AP view highlights the tibia and fibula, while the mortise view provides a better look at the mortise joint. The lateral view shows the tibia, fibula, talus, and calcaneus. Each view offers unique insights into the ankle's structure, aiding in understanding its function and movement.

What are the standard views included in an ankle x-ray series?

• AP, mortise, and lateral views

• AP, oblique, and lateral views

• Mortise, oblique, and lateral views

• AP, mortise, and oblique views

In the AP view of the ankle, which bone is always medial?

• Calcaneus

• Fibula

• Tibia

• Talus

What is the function of the interosseous membrane in the ankle?

• Facilitates plantar flexion

• Supports the talus

• Connects the tibia and fibula

• Forms the mortise joint

Which joint connects the tibia and fibula distally?

• Interosseous joint

• Tibiofibular syndesmotic joint

• Tibiotalar joint

• Mortise joint

Which bone is positioned laterally in the AP view of the ankle?

• Calcaneus

• Fibula

• Tibia

• Talus

What movement is facilitated by the tibiotalar joint?

• Abduction and adduction

• Rotation and circumduction

• Dorsiflexion and plantar flexion

• Inversion and eversion

What is the primary advantage of the mortise view in ankle x-rays?

• Improved visualization of the fibula

• Clearer image of the interosseous membrane

• Enhanced view of the mortise joint

• Better view of the calcaneus

Which bones form the mortise joint in the ankle?

• Tibia, talus, and navicular

• Tibia, fibula, and talus

• Tibia, fibula, and calcaneus

• Fibula, talus, and calcaneus

In the lateral view of the ankle, which bone is located at the top of the foot?

• Calcaneus

• Talus

• Cuboid

• Navicular

What is the role of the calcaneus in the lateral view of the ankle?

• Supports the tibia

• Forms the mortise joint

• Acts as the heel bone

• Connects to the fibula