Acromioclavicular Joint

Question 1

Acromioclavicular Joint

X-Ray Series

Answer 1

Normal Series

• Bilateral AP (with or without weights)

Question 2

Bilateral AC Joints

(with or without weights)

Answer 2

• Cassette - 18x43cm or 35x43, two shots needed if patient is too broad
• Positioning - Pt is standing with back against bucky and sternal notch is centre of image plate
• Stabilization - pt standing comfortably
• Shielding - Gonad shielding/lead apron
• Instructions - pmust be done bilaterally with non-weight bearing then comparative to weight bearing. Do not force if the patient is uncomfortable
• SID - 100cm
• Central Ray - perpendicular oo image plate and centred to sternal notch
• Tube Tilt - 0 for AP and up to 20 for cephalic angle for non-weight bearing
• Collimation - M-L, both AC joints. S-I, to include superior and inferior borders of clavicle
• Marker Placement - lateral to the anatomy
• Kv- Children 50 and Adults 65