What neuropathy might be suspected if a positive response is obtained with the Empty Can/Jobe Test?

The Empty Can/Jobe Test is specifically designed to assess the integrity of the supraspinatus muscle, which is innervated by the suprascapular nerve. A positive response to this test typically indicates weakness or pain when the arm is in abduction and internal rotation, which suggests that the supraspinatus muscle is not functioning properly. This is often due to a problem with the suprascapular nerve that supplies the muscle.

In circumstances where the test is positive, it points toward a lesion or dysfunction of the suprascapular nerve, indicating that further investigation of the shoulder's rotator cuff and associated nerves may be necessary. The design of the test specifically targets the muscles responsible for shoulder abduction, making it a reliable indicator for issues related to the suprascapular nerve.