Which radiographic technique is specifically used to visualize the acromioclavicular joint?

• A. AP clavicle view
• B. Z-view bilateral AC joint views
• C. Lateral knee view
• D. AP pelvis view

Answer: (B)

Visualizing the acromioclavicular joint relies on a projection that clearly opens and compares both joints. The bilateral Z-view AC joint projection is designed for this purpose, giving a direct, magnified look at the AC joints on both sides so you can easily see any widening or misalignment indicative of AC joint injury. It’s superior to a standard AP clavicle view, which isn’t optimized to show the AC joint spacing or subtle separations. Views aimed at the knee or pelvis don’t assess the shoulder girdle at all, so they’re not useful for evaluating the AC joint.