Which of the following statements is true about an optimal tangential knee projection (Merchant method)?
a. A patellar subluxation is demonstrated as long as the patellae are positioned di-rectly above the intercondylar sulcus.
b. The lateral femoral condyle demonstrates more height than the medial femoral condyle.
c. To demonstrate a patellar subluxation, the quadriceps femoris must be tightly contracted.
d. The central ray and axial view angulation, when added, should equal 100 degrees.
Question 2
For an AP projection of the hip with accurate positioning,
1. the ASISs are positioned at equal distances from the IR.
2. the patient's legs are externally rotated until the epicondyles are at a 45-degree angle with the imaging table.
3. gonadal shielding should not be used.
4. the central ray is centered 1.5 inches (4 cm) distal to the midpoint between the ASIS and symphysis pubis to center the hip joint in the field.
a. 1 and 4 only
b. 2 and 3 only
c. 1, 3, and 4 only
d. 2 and 3 only
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Bent Knee
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Prepare knee for cold application. Undrape the leg. Check tissues visually and through palpation, ...
Flexion of the hip with flexed knee