Foot Positioning Flashcards

1
Q

What IR is used for foot views?

A

10x12

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2
Q

What SID is used for foot views?

A

40”

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3
Q

What structures are seen for a dorsoplantar AP/AP axial foot?

A
  • AP projection of entire foot
  • All tarsals distal to the talus, metatarsals, & phalanges
  • Use of angle opens tarsal articulations
  • Overlap the 2nd-5th metatarsal bases
  • Open joint space between the medial and intermediate cuneiforms
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4
Q

How is the patient positioned for a dorsoplantar AP/AP axial foot?

A
  • Patient is supine or sitting on table
  • Bend patients knee & place foot flat on surface of IR
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5
Q

Where is the CR for a dorsoplantar AP/AP axial foot?

A

Entering at base of 3rd metarsal

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6
Q

At what angle is the CR for a dorsoplantar AP/AP axial foot?

A

Either 0 or 10 degrees

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7
Q

What structures are seen for a 30-degree medial oblique foot?

A
  • Oblique projection of entire foot
  • Sinus tarsi best seen
  • Tuberosity of 5th metatarsal well visualised
  • 3rd-5th metatarsal bases free of superimposition
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8
Q

How is the patient positioned for a 30-degree medial oblique foot?

A
  • Begin in AP position
  • Rotate foot medially
  • Plantar surface of foot should form a 30-degree angle with IR
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9
Q

Where is the CR for a 30-degree medial oblique foot?

A

Perpendicular to base of 3rd metatarsal

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10
Q

What would a 30-degree lateral oblique be used to demonstrate?

A

1st & 2nd metatarsal bases

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11
Q

What views is used to demonstrate the 1st & 2nd metatarsal bases?

A

30-degree lateral oblique

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12
Q

What are the structures seen for a mediolateral foot?

A
  • Lateral projection of foot & ankle
  • Include distal tib-fib articulation
  • Demonstrates anterior or posterior displacements of fracture or foreign bodies
  • Tibiotalar joints are seen
  • Fibula overlapping posterior portion of tibia
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13
Q

How is the patient positioned for a mediolateral foot?

A
  • Begin in AP
  • Then roll patient up onto hip of affected side
  • Flex knee so foot is lateral and parallel to IR
  • Dorsiflex foot 90-degrees
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14
Q

Where is the plantar surface for a mediolateral foot?

A

Perpendicular to IR

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15
Q

Where is the CR for a mediolateral foot?

A

Perpendicular at the level of the base of 3rd metatarsal

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16
Q

What view do you see an overlap of the 2nd-5th metatarsal bases?

A

Dorsoplantar AP/AP axial

17
Q

What view do you see an oblique projection of the entire foot?

A

30-degree medial oblique

18
Q

What view do you see the tibiotalar joint?

A

Mediolateral foot

19
Q

What view do you see the open joint space between the medial and intermediate cuneiforms?

A

Dorsoplantar AP/AP axial

20
Q

In what view is the sinus tarsi best seen?

A

30-degree medial oblique

21
Q

What view is the fibula overlapping the posterior portion of the tibia?

A

Mediolateral foot

22
Q

In what view is the tuberosity of the 5th metatarsal well visualized?

A

30-degree medial oblique

23
Q

In what view is the 3rd-5th metatarsal bases free of superimposition?

A

30-degree medial oblique

24
Q

In what view is the foot in a true AP?

A

Dorsoplantar AP/AP axial

25
Q

What view do you see the foot & ankle in a lateral position?

A

Mediolateral foot

26
Q

In what view are all the tarsals distal to the talus, metatarsals, and phalanges?

A

Dorsoplantar AP/AP axial

27
Q

In what view do you see distal tib-fib articulation?

A

Mediolateral foot

28
Q

In what view can the use of an angle open the tarsal articulations?

A

Dorsoplantar AP/AP axial

29
Q

Which view demonstrates anterior or posterior displacements of fractures or foreign bodies?

A

Mediolateral foot