AP knee weight bearing

Question 1

AP Knee WB
Positioning

Answer 1

• Patients standing with the knee against the IR
• Leg rotated inwards with femoral condyles equidistant from the IR and the patella was midway between the condyles
• The tibia should be parallel to the IR
• Horizontal Central Ray is 2cm below the patella

Question 2

AP Knee WB
Collimation - Superior

Answer 2

Distal 1/3 femur

Question 3

AP Knee WB
Collimation - Inferior

Answer 3

Proximal 1/3 tib and fib

Question 4

AP Knee WB
Collimation - Lateral

Answer 4

Skin margins

Question 5

AP Knee WB
Source Image Distance

Answer 5

110/100cm