ankle

Question 1

Standard series

Answer 1

AP

the internal oblique/Mortise

Lateral

Question 2

AP Ankle centring

Answer 2

Centre midway between the medial and lateral malleoli at the level of the malleoli

Question 3

How to position for AP ankle

Answer 3

1. Pt laying on table, with legs extended
2. Heel in contact with the imaging plate
3. Dorsiflex the ankle
4. The lateral malleolus will be 15deg more posterior than the medial malleolus

Question 4

AP ankle Criteria

Answer 4

• Tibiotalar joint space open
• Medial aspect of mortise joint
  free of superimposition

Question 5

AP Mortise Oblique Ankle centring

Answer 5

Center midway between the medial and lateral malleoli. At the level of the malleoli

Question 6

AP Mortise Oblique Ankle position

Answer 6

1. Pt laying on table, with legs extended
2. Heel in contact with the imaging plate
3. Dorsiflex the ankle
4. From the AP position roll the foot and ankle 15-20deg internally
5. The medial and lateral malleolus are equidistant from the imaging plate

Question 7

AP Mortise Oblique Ankle criteria

Answer 7

• Entire mortise joint in profile
• Lateral and medial talarmalleolar joint free of overlap

Question 8

lateral ankle centring

Answer 8

Center over medial malleolus

Question 9

lateral ankle position

Answer 9

1. Pt laying on table, with legs extended
2. Roll Pt laterally onto affected side
3. Dorsiflex the foot
4. Medial and lateral malleolus superimposed
5. Toes/Foot raised 15deg onto a wedge sponge

Question 10

lateral ankle criteria

Answer 10

Fibular superimposing
posterior half of tibia

Tibiotalar joint open

Talar domes superimposed

Lateral malleolus superimposes
talus

Calcaneus in profile

Question 11

45 Degree Oblique Ankle

Answer 11

1. Pt laying on table, with legs extended
2. Heel in contact with the imaging plate
3. Dorsiflex the ankle
4. From the AP position roll the foot and ankle 45degrees internally
5. The medial and lateral malleolus are equidistant from the imaging plate