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Questions and Answers
What is the basic tool for radiologic analysis of lower limb alignment?
What is the basic tool for radiologic analysis of lower limb alignment?
- Anteroposterior view with the patient lying down
- Lateral view with the patient lying down
- Oblique view with the patient sitting
- Anteroposterior view with the patient standing (correct)
In lower limb radiography, how should the patient's legs be positioned in relation to the pelvis?
In lower limb radiography, how should the patient's legs be positioned in relation to the pelvis?
- Legs folded under the body
- Legs crossed
- Legs as far as possible in a similar relationship to the pelvis (correct)
- Legs extended straight out
To correctly evaluate lower limb alignment in the frontal plane, what must be parallel to the X-ray film?
To correctly evaluate lower limb alignment in the frontal plane, what must be parallel to the X-ray film?
- Knee joint
- Patellae (correct)
- Fibula
- Femoral head
What is the direction of the X-ray beam in a full-length standing radiograph for lower limb alignment evaluation?
What is the direction of the X-ray beam in a full-length standing radiograph for lower limb alignment evaluation?
In DDR method for lower limb radiography, where does the patient face while standing erect?
In DDR method for lower limb radiography, where does the patient face while standing erect?
What position should the femoral condyles be in for a correct evaluation of lower limb alignment in radiography?
What position should the femoral condyles be in for a correct evaluation of lower limb alignment in radiography?
What is the correct patient positioning for a lateral (basic) projection of the knee?
What is the correct patient positioning for a lateral (basic) projection of the knee?
In lower limb radiography, where should the collimated vertical X-ray beam be centered for a femoral shaft image?
In lower limb radiography, where should the collimated vertical X-ray beam be centered for a femoral shaft image?
What is a crucial indicator that rotation has been minimized during lower limb radiography?
What is a crucial indicator that rotation has been minimized during lower limb radiography?
Why is it important not to rotate the limb during X-rays in cases of suspected fracture?
Why is it important not to rotate the limb during X-rays in cases of suspected fracture?
When imaging both joints on a single X-ray image is not possible, what should be done?
When imaging both joints on a single X-ray image is not possible, what should be done?
In adults, how is limb alignment typically ensured during digital CR and DDR imaging?
In adults, how is limb alignment typically ensured during digital CR and DDR imaging?
What defines the anatomic axes of the femur and tibia?
What defines the anatomic axes of the femur and tibia?
Which point should the mechanical axis pass through in the lower limb?
Which point should the mechanical axis pass through in the lower limb?
What is the normal range for the femoral neck-shaft angle?
What is the normal range for the femoral neck-shaft angle?
What is measured in millimeters to determine lateral mechanical axis deviation (MAD)?
What is measured in millimeters to determine lateral mechanical axis deviation (MAD)?
What condition is present if the Coxa valga angle is greater than 135°?
What condition is present if the Coxa valga angle is greater than 135°?
How is the mechanical axis deviation measured in limb alignment assessment?
How is the mechanical axis deviation measured in limb alignment assessment?
In an Antero-Posterior (AP) Tibia/Fibula radiograph, where should the X-ray beam be centered?
In an Antero-Posterior (AP) Tibia/Fibula radiograph, where should the X-ray beam be centered?
What is the correct patient positioning for a Lateral Tibia/Fibula radiograph?
What is the correct patient positioning for a Lateral Tibia/Fibula radiograph?
What angle of rotation is required for the patient in a Lateral Oblique Projection for knee joint imaging?
What angle of rotation is required for the patient in a Lateral Oblique Projection for knee joint imaging?
Where is the lateral malleolus located?
Where is the lateral malleolus located?
What should be equidistant from the image receptor in an AP Tibia/Fibula radiograph?
What should be equidistant from the image receptor in an AP Tibia/Fibula radiograph?
What should be parallel to an imaginary line joining the malleoli in a lateral Tibia/Fibula radiograph?
What should be parallel to an imaginary line joining the malleoli in a lateral Tibia/Fibula radiograph?
What is the purpose of taking an antero-posterior oblique projection in radiography of the lower limb?
What is the purpose of taking an antero-posterior oblique projection in radiography of the lower limb?
Why is the AP projection taken frequently in the weightbearing/standing position for knee joint imaging?
Why is the AP projection taken frequently in the weightbearing/standing position for knee joint imaging?
In lower limb radiography, when taking the AP projection, how is the patient positioned?
In lower limb radiography, when taking the AP projection, how is the patient positioned?
What is the ideal limb rotation required for projecting the tibial condyle clear of the joint in lower limb radiography?
What is the ideal limb rotation required for projecting the tibial condyle clear of the joint in lower limb radiography?
Which imaging modality is increasingly used to evaluate the proximal tibio-fibula joint?
Which imaging modality is increasingly used to evaluate the proximal tibio-fibula joint?
How is the X-ray beam aligned for an AP projection of the lower limb?
How is the X-ray beam aligned for an AP projection of the lower limb?
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