Wrinkle test

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The wrinkle test (attributed as O'Riain's or Leukens' wrinkle test) is a test of peripheral nerve function. The fingers are placed in warm water for approximately 10 minutes. If the fingers do not wrinkle, this is a sign of denervation.[1][2]

See also[edit]


  1. ^ Jeff Konin; Denise Wiksten; Jerome Isear; Holly Brader (2006), Special Tests for Orthopedic Examination, pp. 35–38 
  2. ^ Raoul Tubiana; Jean-Michel Thomine; Evelyn Mackin (1998), Examination of the Hand and Wrist, pp. 340–341, ISBN 9781853175442