Overview

Bilateral AP AC joint radiographs compare joint alignment and detect separation or degenerative change. Weight bearing views with weights in the hands accentuate joint separation. Comparison with the contralateral side aids diagnosis.

Technique

Obtain AP views centered to the AC joints with and without weights as indicated. Use equal exposure and positioning for both sides to allow direct comparison. Ensure patient comfort and secure weights safely.

Clinical Indications

AC joint series are used for trauma shoulder pain and suspected separation. They evaluate joint space widening and coracoclavicular distance. Conservative or surgical management depends on degree of separation.

Image Assessment

Compare joint spaces and alignment between sides and between weighted and non weighted views. Look for associated clavicle fractures and degenerative changes. Report degree of displacement and recommend orthopedic follow up when needed.