Wrist – Digit III; Wrist – Hand (ADM muscle)

Surface Recording Technique, Antidromic Study
  • Giuliano Gentili
  • Mario Di Napoli

Original Settings

The machines used were a Cadwell Sierra and a Neuromax Excel electrodiagnostic machines. Sensitivity, low-frequency filter, high-frequency filter, sweep speed, duration of pulse, and rate of pulse were not specified.


This study was performed in the supine position.


The authors used standard techniques but, for both median–sensory and ulnar–motor conduction techniques, they did not specify the methods chosen [ 1]. For median–sensory, they did not specify which finger was tested and if the orthodromic or antidromic method was performed. For the ulnar–motor, they did not specify from which muscle motor responses were recorded, after stimulation at the wrist (abductor digiti minimi, ADM, muscle or first dorsal interosseous, FDI, muscle). For the median–sensory, following the antidromic method, we recorded signals using surface electrodes placed to digit III (Fig. 1). For the median nerve (R1), the active recording electrode (A) was placed around the...


  1. 1.
    Bodofsky EB, Wu KD, Campellone JV et al (2005) A sensitive new median-ulnar technique for diagnosing mild carpal tunnel syndrome. Electromyogr Clin Neurophysiol 45:139–144PubMedGoogle Scholar
  2. 2.
    Bland JDP (2000) A neurophysiological grading scale for carpal tunnel syndrome. Muscle Nerve 23:1280–1283PubMedCrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Giuliano Gentili
    • 1
  • Mario Di Napoli
    • 1
  1. 1.Neurological ServiceS. Camillo de’ Lellis General HospitalRietiItaly

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