The Shoulder » Sulcus Test
Sulcus Test is used to detect inferior instability due to a laxity of the superior Glenohumeal and coracohumeral ligaments.
The patient stands with the arm by the side and shoulder muscles relaxed. The examiner grasps the patient’s forearm below the elbow and pulls the arm distally.
The presence of a sulcus sign may indicate inferior instability or glenohumeral laxity but should only be considered positive for instability if the patient is symptomatic.
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