POSITIONING: ROUTINE LEG 

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♦Routine: AP and Profile♦
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♦ AP:
► Patient Positioning:
In supine position; with a pillow under the head; lower limbs must be fully
extended.
► Position of the Party:
• Adjust pelvis, knee, and leg for true, non-rotating AP.
• Place a pad against the foot for stabilization and dorsiflex the foot 90° in relation to the
leg if possible.
• Make sure the ankle and knee joints are between 2.5 and 5 cm (1 and 2 inches) from the
ends of the RI (so that the diverging rays do not protrude out of the RI).
• If the limb is not too long, place the leg diagonally (corner to corner) in a 35 × RI
43 cm (14 × 17 inches) to ensure both joints are included. (In addition, if
If necessary, a second smaller IR can be performed from the joint closest to the injury site.)
► RC:
• CR perpendicular to the RI, directed to the midpoint of the leg.
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♦ PROFILE:
► Patient Positioning:
In lateral decubitus, with the injured side down; the opposite leg can be positioned behind the
affected and supported with pillows or cushions.
► Position of the Party:
• Make sure the leg is in a true lateral position. (Plan of the patella should be
perpendicular to the RI.)
• Make sure the ankle and knee joints are between 1 and 2 inches (3 and 5 cm)
from the ends of the RI, so that divergent rays do not protrude out of the RI.
• If the limb is too long, position the leg diagonally (from corner to corner) over an RI of 35
× 43 cm (14 × 17 inches) to ensure inclusion of both joints. (In addition, if
If necessary, a second smaller RI can be considered at the joint closest to the site of the
lesion.)
► RC:
• CR perpendicular to the RI, directed to the midpoint of the leg.
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Source: Bontrager, 8th Edition. #Radiology