Critiques Flashcards
What is the center point for a DP foot?
midline at the base of the third metatarsal
What is the FOV for a foot?
Distal phalanges, tarsal bones, metatarsals, calcaneus and soft tissue borders
How do you assess angulation of the foot?
10 – 15 degrees cranial angulation to ensure the central ray is perpendicular to the MTs and lateral arch of foot
There is no foreshortening or elongation of metatarsals on this image
How do you assess a foot image for rotation?
Bases of 2nd-5th metatarsals superimposed and equal concavity of metatarsals
Joint space is open between medial and intermediate cuneiform
What is the center point for an oblique foot?
Midline at base of 3rd metatarsal
What is the FOV for an oblique foot?
distal phalanges, tarsal bones, metatarsals, calcaneus and soft tissue borders
How do you assess an oblique foot image for angulation?
3rd to 5th tarso-metatarsal joint spaces are open
No foreshortening of the MTs
Closed PIP and DIP joints are expected as unable to keep toes in a straight line
How do you assess an oblique foot image for rotation?
1st and 2nd MT are partially superimposed
5th metatarsal tuberosity in profile
The cavity between the talus and calcaneus bones (sinus tarsi) is open
The joint space around cuboid is open
What is the center point for lateral foot?
Medial cuneiform at base of 3rd metatarsal
What is the FOV for lateral foot?
distal phalanges, tarsal bones, metatarsals, calcaneus and soft tissue borders. Ankle joint, distal tibia and fibula also
How do you assess a lateral foot for angulation?
The space between the medial malleolus and talus (tibiotalar joint) is open. Superimposition of talar domes shape visualised
How do you assess a lateral foot image for rotation?
Anterior and posterior aspects of talar dome are superimposed
Metatarsals and phalanges superimposed
Distal tibia and fibula superimposed
