The accuracy of needle electrode placement by trainees in selected forearm muscles using verification by neuromuscular ultrasound

Tae Gun Jin, Dominic D'Andrea, Senda Ajroud-Driss, Colin K. Franz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Introduction: Anatomic landmarks alone may not always be sufficient to accurately guide electromyography (EMG) electrode needle placement. Methods: Senior residents and fellows (n = 11) targeted 4 forearm muscles with anatomic landmarks alone versus with audiovisual EMG feedback. Accuracy of EMG needle placement was verified using neuromuscular ultrasound imaging. Results: While relatively large and superficial FCR muscle was sampled at a rate of 100% with and without audiovisual EMG feedback, accuracy of deeper and/or smaller forearm muscles (FPL, EIP, and SUP) diminished significantly without audiovisual EMG feedback. Discussion: Our study suggests that in clinical scenarios in which an electrodiagnostician relies on anatomic landmarks alone to target small and deep muscles, the risk of misplacement of needle electrode is increased. Consideration for neuromuscular ultrasound to augment training and/or real time guidance in EMG practice may be appropriate.

Original languageEnglish (US)
Article number102573
JournalJournal of Electromyography and Kinesiology
Volume60
DOIs
StatePublished - Oct 2021

Keywords

  • Electromyography
  • Forearm muscles
  • Neuromuscular
  • Quality improvement
  • Ultrasound

ASJC Scopus subject areas

  • Clinical Neurology
  • Biophysics
  • Neuroscience (miscellaneous)

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