Wartenberg's Syndrome

 Introduction 
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Wartenberg's Syndrome which is described as the entrapment of the superficial branch of the radial nerve[1] with only sensory manifestations and no motor deficits. This should not be confused with Wartenberg's Sign which refers to the slightly greater abduction of the fifth digit, due to paralysis of the abducting palmar interosseous muscle and unopposed action of the radial innervated extensor muscles (digiti minimi, digitorum communis ).[2]

  1. Tosun N, Tuncay I, Akpinar F. Entrapment of the sensory branch of the radial nerve (Wartenberg's syndrome): an unusual cause ;Tohoku J Exp Med. 2001 Mar;193(3):251-4.
  2. A.J. Larner; A Dictionary of Neurological Signs; Springer Science & Business Media, 12-Nov-2010; page 369