Ankle
True or False. A correctly positioned lateral ankle will demonstrate the lateral malleolus superimposed over the posterior half of the tibia.
True
Which projection of the knee will best show the patella in profile?
Lateral
Where is the central ray directed on the AP proximal femur projection?
Perpendicular to femoral neck
How many degrees should the feet and lower limbs be internally rotated for an AP pelvis radiograph?
15 to 20 degrees
What is the purpose for flexing the knees and hips on the AP lumbar projecton?
Reduces lordotic curvature
The medial and lateral oblique projections of the ankle require the leg and foot to be rotated how many degrees?
45 degrees
How much should the knee be flexed for a true lateral projection?
20 to 30 degrees
What is the correct rotation of the leg for the AP distal projection of the femur?
5 degrees medially
What respiration phase should be used on the pelvis &/or hip projections?
Suspended respiration
Why should a sponge be placed under the patients waist on the lateral lumbar projection?
Place spine parallel to the table
What is the purpose for weight-bearing ankle view?
narrowing of ankle joint space
In the true lateral position of the knee without any rotation the ______________ should be directly superimposed.
Posterior borders of femoral condyles
How far below the knee should the IR be placed to ensure the entire knee is included on the AP projection of the femur?
2 inches below knee joint
True or False: The CR should be directed 1 to 2 inches distal to midfemoral neck on the AP projection of the hip on a patient without an orthopedic appliance.
False
Over-rotation of the oblique lumbar spine is indicated by:
the pedicle demonstrated posteriorly on the vertebral body
for an anteroposterior (AP) mortise ankle radiograph, it is necessary to rotate the patient's foot:
15-20 degrees
Which projection of the knee will best demonstrate the fibula head and neck without superimposition?
Medial oblique
The femoral neck is located _____________________ and ______________________ to the ASIS.
1" to 2" medial and 3" to 4" distal
A closed or foreshortened right obturator foramen on the AP pelvis indicates:
Pelvis is rotated to the right
What is the term for an abnormal anterior concavity of the lumbar spine?
Lordosis
where should the central ray be directed for an anteroposterior (AP) ankle radiograph?
midway between the malleoli
What evaluation criteria will demonstrate under-rotation on the lateral knee projection?
More superimposition of fibular head
What projection will demonstrate the greater trochanter superimposed by the femur?
Frog leg lateral femur
Why must the lower limb be rotated 15 to 20 degrees internally for AP hip projections?
To place femoral neck parallel with IR
Where is the central ray directed on the flexion and extension lumbar spine?
Site of fusion if known