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Focal conduction block in a case of tarsal tunnel syndrome
Author(s) -
Almeida Diogo F.,
Scremin Luciano,
Zúniga Sérgio F.,
Oh Shin J.
Publication year - 2010
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.21732
Subject(s) - tarsal tunnel syndrome , medicine , magnetic resonance imaging , nerve conduction , pathological , block (permutation group theory) , thermal conduction , anatomy , surgery , radiology , pathology , ankle , materials science , geometry , mathematics , composite material
Abstract We report a case of tarsal tunnel syndrome (TTS) with focal conduction block across the tarsal tunnel (TT). A 46‐year‐old woman had pain in the left foot, sensory loss on the plantar surface, and positive Tinel sign over the TT. TTS was confirmed by magnetic resonance imaging (MRI) scan and surgery. Motor nerve conduction studies showed focal conduction block across the TT. Conduction block has rarely been reported in TTS. In this case, conduction block provides evidence for focal demyelination as the primary pathological process in TTS. Muscle Nerve, 2010