Adson’s Sign
Adson’s sign is the loss of the radial pulse in arm by rotating head to the ipsilateral side with extended neck following deep inspiration. It is used as a sign of thoracic outlet syndrome (TOS).
Thoracic Outlet Syndrome Nerve Root Affected:
C8 / T1
Structures Causing Constriction in Thoracic Outlet Syndrom
1. Scalenus Anticus Syndrome
2. Cervical Rib Syndrome
3. Costoclavicular Syndrome
4. Carpal Tunnel Syndrome
5. Frozen Shoulder
Adson’s Sign Test Video
Artery Supply of Superior Extremity
Significance of Adson’s Sign
Adson’s sign is no longer used as a positive diagnosis of TOS since many people without TOS will show a positive Adson’s.
What is Adson's Sign? Significance of Adson's Sign
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