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Tinel’s test = percussion of the carpal tunnel


This is a percussion test for the median nerve in the carpal tunnel or for the ulnar
nerve in Guyon’s tunnel. It should elicit paraesthesia in the territory either of the medjan nerve – 3l-> fingers medially and palmar, or of the ulnar nerve – 1 1> ulnar fingers.


The subject presents the hand palm upwards. The examiner grasps the wrist with
one hand. The other hand uses the percussion hammer.


Give a slight percussion on the carpal tunnel.
Give a slight percussion on Guyon’s tunnel.

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