

The Cross Body Adduction Test is an orthopedic test to assess for a sensitized Acromioclavicular Joint such as in osteoarthritis.
According to a study done by Chronopoulos et al. (2004) the cross-body adduction test has a sensitivity of 77% and a specificity of 79%. The authors do not recommend using this test as a standalone diagnostic tool.
To conduct the test elevate the arm to 90° of flexion and then add maximum horizontal adduction.A positive test will produce pain on top of the shoulder near the AC joint.
Other common orthopedic tests to assess for AC Joint Pathology are: