Separated shoulder test

To test for painful shoulder separation, orthopedic professionals typically use the active compression test (O'Brien's Test) and internal rotation assessment. These clinical special tests involve specific movements and maneuvers to evaluate the stability and function of the acromioclavicular (AC) joint.

Performing an AC joint compression test involves having the patient actively move their arm while applying downward pressure on the AC joint. A positive predictive value, marked by pain or discomfort during this maneuver, may indicate AC joint pathology, prompting further evaluation.

AC joint pain is diagnosed through a combination of clinical assessment and imaging studies. Physical examination special tests, such as the active compression test and palpation for tenderness, are complemented by X-rays or MRIs to confirm the presence and severity of AC joint pathology.