Toe Flashcards
What is the kV used for a toe projection?
55-60kV
What angle is used for an AP axial toe?
10-15 degrees
What is the centring for an AP axial toe?
•first toe - IP joint
•second to fifth toe - PIP joint
What anatomy is included in a toe projection?
Phalanges and half of the MTs, all soft tissue
Why is an angle used for toes?
Extension is difficult
How do you identify lateral rotation in an AP toe?
• soft tissue width and mid-shaft concave are greater on medial side of toe
• medial side is the side positioned away from IR in lateral rotation
How do you identify medial rotation in an AP toe?
• soft tissue and mid-shaft concavity are greater on the lateral side of the toe
• lateral side is positioned away from IR in lateral rotation
What is the degree of obliquity for an AP oblique toe?
45 degrees
What does a correct oblique toe look like?
•twice as much soft tissue width and increased mid-shaft concavity on side positioned away from IR
•no overlap of MT heads
( MT heads are closed but not overlapped)
How do you assess insufficient rotation in oblique toes projection?
Mid-shaft concavity and soft tissue are closer to equal
How do you assess excessive rotation on oblique toe projection?
•More than twice the soft tissue width and increased concavity
•MT heads will begin to superimpose
What does a correct lateral toe projection look like?
•posterior surface demonstrates more concavity than anterior surface
•condyles of the proximal phalanx are superimposed
•digits are free of superimposition
How do you identify insufficient toe rotation in a lateral projection?
•condyles of proximal phalanx are not superimposed
•MT heads are shown posterior to the first toe
How do you assess excessive toe rotation in a lateral projection?
•condyles of proximal phalanx are not superimposed
•MT heads are seen superimposing or positioned anterior to the first toe
