Clinical indication:
Ligament injury, fracture, degenerative joint disease and arthritis of knee joint
Region:
Knee joint, proximal tibia/ fibula, distal femur.
Patient’s Position:
Turn the patient to the affected side flexed and extend other extremity behind it.
A flexion of 20°-30° is performed as this position relaxes the muscle and shows the maximum volume of joint cavity. Patient is placed in lateral decubitus position. Place the opposite leg of filming slide in front in flexion state. While flexing the filming knee 15°-20° placed bilateral condyles of femur to be perpendicular to IR.
Cassette:
Size: 8’’x10’’ Orientation: Portrait
FFD/SID:
100cm
Central ray:
Project 5° cephalic toward knee joint.
Grid:
No
Respiration:
Not related.
Exposure factors:
60-70kVp 7-10mAs
Collimation:
Include distal portion of femur, tibia and proximal of fibula.