Patella Positioning Flashcards

1
Q

What IR is used for Patella views?

A

10x12

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2
Q

What IR is used for most patella views?

A

40”

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3
Q

What’s another name for the Axial projection supine flexion settegast method?

A
  • Sunrise/sunset/skyline view
  • Tangential patella
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4
Q

What are the structures seen for the Axial projection supine flexion settegast method?

A
  • Patella shown in profile
  • Patellofemoral joint space should be equal and open
  • Surface of the femoral condyles seen
  • Projection is used for evaluation of vertical fracture
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5
Q

How is the patient positioned for the Axial projection supine flexion settegast method?

A
  • Patient sitting
  • Knees slightly bent
  • Feet on edge of table
  • patient holding IR that’s angles to match the tube angle
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6
Q

Where is the CR for the Axial projection supine flexion settegast method?

A

Directed to pass through the patellofemoral joint space

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7
Q

How many degrees is the CR angles for the Axial projection supine flexion settegast method?

A

15-20 degrees caudally after matching tube with tib-fib

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8
Q

What are the structures seen for a mediolateral patella?

A
  • Lateral projection of patella
  • Open patellofemoral joint
  • Patella in profile
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9
Q

How is the patient positioned for a mediolateral patella?

A
  • Patient is rolled up onto affected knee to place femoral epicondyles perpendicular to IR
  • Flex knee 5-10 degrees
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10
Q

Where is the CR for a mediolateral patella?

A

Perpendicular entering at the mid-patellofemoral joint

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