The acromioclavicular joint can be assessed with standard shoulder X-rays. Loss of alignment of the inferior surfaces of the clavicle and acromion indicates disruption of the acromioclavicular ligaments at the acromioclavicular joint (ACJ).
Menu Acromioclavicular Joint Figure 5-1. Normal ACJ. Schematic drawing of an anterior view of the right shoulder. The normal ACJ contains a variable intra-articular disk that ranges from [A] complete[B] to meniscoid-like appearance. Figure 5-2. ACJ supporting ligaments. Schematic drawing of an anterior view of the right shoulder.
Typical shoulder X-ray views include: An axial view can also be used as an alternative to the scapula Y view if the patient is unable to tolerate the positioning required to obtain this view. Figure 1. A normal AP view 1 Figure 1.1.