Case 3 and 4
Two soldiers were referred with increasing arm numbness and weakness during pack marching. They found they had to hitch their rifles over their webbing. They were unable to perform fine motor skills i.e. operate weapons, until some minutes after dropping their packs.
Roos test in case 1 demonstrated subclavian artery entrapment.
A treadmill pack march with case 2 revealed subclavian venous entrapment.
Moral: Functional thoracic outlet syndromes have operational implications.
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