Oblique Thumb Flashcards
1
Q
What projection is performed to demonstrate an oblique thumb?
A
PA oblique
2
Q
What is the position?
A
Medial/internal rotation
3
Q
How much should the thumb be obliqued?
A
45 degrees
4
Q
How do you accomplish this obliquity?
A
Use a positioning sponge
5
Q
What is the CR location?
A
MCPJ
6
Q
When properly collimated and centered, how much of the thumb anatomy should be seen?
A
1” on all sides with 1” proximal to the CMC joint
7
Q
When analyzing your image, how can you determine if the obliquity is accurate?
A
There should be greater concavity on the posterior side of hand
