Ultrasound and neurophysiological correlation in common fibular nerve conduction block at fibular head

Hiroshi Tsukamoto, Giuseppe Granata, Daniele Coraci, Ilaria Paolasso, Luca Padua

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Objective: Ultrasound (US) and neurophysiological examination are useful tools in the evaluation of common fibular mononeuropathy. There is only a report comparing US and electrophysiological parameters in patients with common fibular nerve (CFN) conduction block at fibular head. We investigated the correlation between US and neurophysiologic findings in this condition. Methods: We retrospectively reviewed patients with CFN assessed in our lab during last 2. years. Each patient underwent to clinical, neurophysiological and ultrasound evaluations. Cross sectional area (CSA) of CFN at fibular head was assessed. Results: Twenty-four patients were included. Motor nerve conduction study showed a reduction of distal compound muscle action potential (CMAP) amplitude in 10 patients (mean 1.3. mV). US showed an increased CSA in 10 patients. Statistical analysis revealed a strong correlation between the increased CSA and the CMAP reduction of CFN. Conclusion: Our data suggest that usually US examination is normal in CFN conduction block at fibular head. However the association with axonal damage is frequently accompanied by an increase of CSA. Significance: Ultrasound evaluation may represent a powerful diagnostic/prognostic tool in cases with CPN conduction block at fibular head because it usually shows normal pattern in pure conduction block and increase of CSA in associated axonal damage.

Original languageEnglish
Pages (from-to)1491-1495
Number of pages5
JournalClinical Neurophysiology
Volume125
Issue number7
DOIs
Publication statusPublished - 2014

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Peroneal Nerve
Nerve Block
Neural Conduction
Head
Action Potentials
Mononeuropathies
Muscles

Keywords

  • Common fibular neuropathy
  • Conduction block
  • Neurophysiology
  • Ultrasound

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Physiology (medical)
  • Sensory Systems
  • Medicine(all)

Cite this

Ultrasound and neurophysiological correlation in common fibular nerve conduction block at fibular head. / Tsukamoto, Hiroshi; Granata, Giuseppe; Coraci, Daniele; Paolasso, Ilaria; Padua, Luca.

In: Clinical Neurophysiology, Vol. 125, No. 7, 2014, p. 1491-1495.

Research output: Contribution to journalArticle

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