Shoulder Thoracic Outlet Evidence: uncertain

Adson's Test Special Test

Orthopedic Physical Examination & Clinical Assessment Guide

Adson's Test Orthopedic Special Test

What is it used for?

  • Diagnosing TOS (specifically Scalene muscle compression).

How to Perform

  • Position: Patient seated. Examiner palpates the radial pulse.
  • Action: Patient rotates their head towards the tested side and extends the neck while taking a deep breath and holding it.
  • Extension: Examiner laterally rotates and extends the patient's shoulder.

Interpretation of Results

  • Positive Test: Disappearance or significant diminution of the radial pulse.

Diagnostic Accuracy

  • Sensitivity: 79%
  • Specificity: 76%

References

  • Magee, D. J. (2021). Orthopedic Physical Assessment.