AP Thumb

Question 1

How is the hand rotated to accomplish the AP projection of the thumb?

Answer 1

Extreme medial/internal rotation

Question 2

What is the CR location?

Answer 2

MCPJ

Question 3

When properly collimated and centered, how much of the thumb anatomy should be seen?

Answer 3

1” proximal to CMCJ

Question 4

When analyzing your AP thumb, how can you determine if there is rotation?

Answer 4

Concavity on phalangeal and metacarpal bodies, equal amount of soft tissue on both sides, thumb nail visualized and centered

Question 5

When analyzing your AP thumb, how can you determine if there is rotation?

Answer 5

Concavity on phalangeal and metacarpal bodies, equal amount of soft tissue on both sides, thumb nail visualized and centered