The sulcus test is used to assess the glenohumeral joint for inferior instability, due to laxity of the superior glenohumeral ligament and coracohumeral ligament. [1]

Nov 2, 2025 · The sulcus sign determines the amount of inferior glide of the humeral head when traction is applied to the humerus. It was described by Neer and Foster in 1980.

Kai performs the Sulcus sign for shoulder instability. Evidence: The diagnostic accuracy has not been evaluated as the interpretation depends mostly on the subjective findings.

Dec 16, 2025 · The essential guide to the Sulcus Sign. Learn the anatomy, testing technique, and clinical interpretation for diagnosing shoulder instability.

Oct 30, 2024 · The Sulcus Sign is an examination test used to check shoulder instability, mainly inferior instability. It involves the clinician applying a downward force on the humerus while stabilizing the …

The sulcus sign is defined as a clinical test used to assess inferior glenohumeral joint instability, characterized by the development of a sulcus between the humeral head and the acromion when a …

The Sulcus Sign is an orthopedic test to assess shoulder instability in the inferior direction or inferior shoulder capsule laxity.

The sulcus sign is an orthopedic evaluation test for glenohumeral instability of the shoulder. With the arm straight and relaxed to the side of the patient, the elbow is grasped and traction is applied in an …

This test is considered positive if there is significant inferior movement of the arm relative to the shoulder and if a visible ‘sulcus’ or ‘step-off deformity’ is observed between the acromion and the humeral head.

The sulcus sign indicates inferior instability of the glenohumeral joint. To perform this test, have the patient seated with her arm relaxed. With one hand, palpate the inferior aspect of the acromion and …