Author Question: For an externally rotated AP oblique knee projection, the 1. leg is externally rotated until an ... (Read 61 times)

mwit1967 · **on:** Jul 17, 2018

For an externally rotated AP oblique knee projection, the

1. leg is externally rotated until an imaginary line connecting the femoral epicondyles is at a 45-degree angle with the IR.
2. leg is internally rotated until an imaginary line connecting the femoral epicondyles is at a 45-degree angle with the IR.
3. central ray is aligned parallel with the tibia plateau.
4. central ray is centered at a level 0.75 inch (2 cm) distal to the medial femoral epicondyles.
a. 1 and 4 only
b. 1 and 3 only
c. 2 and 4 only
d. 1, 3, and 4 only

Question 2

For an externally rotated AP oblique knee projection with accurate positioning, the

1. fibular head is demonstrated free of tibial superimposition.
2. lateral femoral condyle is demonstrated in profile.
3. fibular head, neck, and shaft are superimposed by the tibia.
4. medial condyle is shown in profile.
a. 1 and 2 only
b. 1 and 4 only
c. 2 and 3 only
d. 3 and 4 only