Radiographic Positioning: Radiographic Positioning of the Knee

KNEE

ROUTINE VIEWS:
AP
Lateral
Tunnel
Tangential

AP
1. Patient supine
2. Knee in true A.P. position.
3. Bucky
4. 40" SID
5. Center to Apex of patella.
6. Angle tube 5-7 degrees cephalad.
7. 10 x 12 film

Lateral
1. Patient in true lateral position with affected side closest to film flex knee slightly if possible.
2. Bucky
3. 40" SID
4. Angle tube 5-7 degree cephalad.
5. Center medial epicondyle.
6. 10 x 12 film

Tunnel (Homblad)
1. Patient up on knees with femurs forward 20-25 degrees, Central Ray: through bend of leg.
2. Bucky
3. 40" SID
4. 10 x 12 film

Transgential (Sunrise)
1. Patient sitting on table.
2. Patient's affected leg is placed so that the foot is flat on table.
3. Patient hold 8 x 10 extremity cassette behind knee.
4. Angle tube approximately 45-50 degrees cephalad to project shadow of knee on film.
5. Film is marked medially and laterally.