Question

What position/projection would best demonstrate a transverse, hairline fracture of the patella

1. Lateral
2. PA
3. Tangential (Settegast method)

Select one:
a. 1 only
b. 1 and 2 only
c. 3 only
d. 1, 2, and 3

Answer 1

The best view to demonstrate a transverse, hairline fracture of the patella is the lateral view, as it clearly profiles the patella and can show fractures not visible in other projections. The PA and Tangential views are less effective for this type of fracture.

Step-by-step explanation:

To best demonstrate a transverse, hairline fracture of the patella, the correct position or projection would be a Lateral view. A lateral view of the knee will show the patella in profile and can reveal a fracture that might not be visible in other views. The PA (posteroanterior) view will not sufficiently show a transverse fracture because the patella would be superimposed over the femur. The Tangential (Settegast method) is used primarily to demonstrate the patellofemoral joint space, and while it might show a fracture indirectly, the direct profile offered by the lateral view is preferential for a transverse hairline fracture. Thus, the correct answer here would be a. (1 only) - a lateral view of the patella.