Patella Positioning Flashcards
What IR is used for Patella views?
10x12
What IR is used for most patella views?
40”
What’s another name for the Axial projection supine flexion settegast method?
- Sunrise/sunset/skyline view
- Tangential patella
What are the structures seen for the Axial projection supine flexion settegast method?
- 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
How is the patient positioned for the Axial projection supine flexion settegast method?
- Patient sitting
- Knees slightly bent
- Feet on edge of table
- patient holding IR that’s angles to match the tube angle
Where is the CR for the Axial projection supine flexion settegast method?
Directed to pass through the patellofemoral joint space
How many degrees is the CR angles for the Axial projection supine flexion settegast method?
15-20 degrees caudally after matching tube with tib-fib
What are the structures seen for a mediolateral patella?
- Lateral projection of patella
- Open patellofemoral joint
- Patella in profile
How is the patient positioned for a mediolateral patella?
- Patient is rolled up onto affected knee to place femoral epicondyles perpendicular to IR
- Flex knee 5-10 degrees
Where is the CR for a mediolateral patella?
Perpendicular entering at the mid-patellofemoral joint