Sulcus Sign Test [Inferior Shoulder Instability] | Rationale & Interpretation

What is the purpose of applying an inferior directed longitudinal distraction force during the sulcus sign test?

Describe how to identify a positive sulcus sign during the test.

What measurements are necessary to confirm a true sulcus sign?

What are the psychometrics associated with the sulcus sign test, particularly regarding sensitivity and specificity?

Explain the significance of a sulcus sign that measures greater than two centimeters.