An AP knee projection obtained with the knee internally rotated demonstrates
1. a larger appearing medial femoral condyle than lateral condyle.
2. a larger appearing lateral femoral condyle than medial condyle.
3. the fibular head with increased tibial superimposition.
4. the fibular head with decreased tibial superimposition.
a. 1 and 3 only
b. 1 and 4 only
c. 2 and 3 only
d. 2 and 4 only
Question 2
For a lateral knee projection,
1. an imaginary line connecting the femoral epicondyles is aligned parallel with the IR.
2. a patient with long femora and a narrow pelvis does not require an angled central ray.
3. a grid is used if the knee measures over 10 cm.
4. the central ray is centered 1 inch (2.5 cm) distal to the medial femoral epicondyles.
a. 1 and 2 only
b. 2 and 4 only
c. 2, 3, and 4 only
d. 1, 2, 3, and 4
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