Evaluation of the Injured Shoulder in Varying Degrees of Abduction.

(A)External rotation force is applied to the arm in 45 degrees of abduction.(B)The shoulder is abducted 90 degrees. Next, the external rotation force with some extension is applied, which produces pain, usually posteriorly, and marked apprehension in the patient. This position most commonly produces pain and severe apprehension.(C)The external rotation and extension force is applied to the arm in 120 degrees of abduction. This causes apprehension in some patients but not as marked with the arm in 90 degrees of abduction.(D)The Feagin test. With the patient’s elbow resting on the top of the physician’s shoulder, a downward force on the proximal humerus in some instances produces apprehension.