Foot mediolateral

Question 1

• How should the foot be positioned for this image?

Answer 1

Roll onto affected side, dorsiflex foot 90 degrees

Question 2

• How should the plantar surface of the foot be in relationship to the IR?

Answer 2

Perpendicular to IR

Question 3

• What is the central ray location?

Answer 3

base of 3rd metatarsal

Question 4

• How should the talar domes be demonstrated in a true lateral foot?

Answer 4

superimposed on top of each other

Question 5

• If one talar dome is anterior to the other, what positioning error does this indicate? What’s the next anatomy that you should look at to determine what error was made?

Answer 5

Rotated, toes elevated or heel elevated. Also look at tibia and fibula. Fibula is in posterior half of tibia if not rotated.

Question 6

• In a properly positioned lateral foot, where should the fibula be demonstrated in relation to the tibia? If it’s not, what positioning error does this indicate?

Answer 6

Fibula should be in posterior half of tibia, if not there is rotation. If toes are elevated the fibula moves anterior and if heel is elevated fibula moves posterior to tibia.