EMG & Nerve Conductions | Electronic EMG Manual : Lower Extremity Nerves

home	about us	patient forums	doctors forums	online store	contact us

ELECTRONIC EMG MANUAL®

OVERVIEW

The EMG Manual is a simple step-by-step approach to the basic understanding of EMG and Nerve Conductions studies. It is designed to familiarize the reader with the basic aspects of nerve conduction studies and needle examinations and can serve as a guide to the test, a preparation for the EMG rotation, or as a simple means for better understanding of the indications, preparations, interpretation and performance of EMG Nerve and Conduction studies

NERVE CONDUCTION STUDIES | LOWER EXTREMITY NERVES |
THE SURAL, SUPERFICIAL PERONIAL, AND SAPHENOUS NERVES

Sural Nerve

Place the recording electrode posterior or inferior to the lateral malleolus and the reference electrode further down the lateral aspect of the foot. Apply, stimulation to the posterior-lateral aspect of the leg 14 cm above the recording electrode.

Stimulation can also be applied at other points proximally along the nerve and conduction velocities calculated. Distances may be short, however, making these calculations less reliable. At times, especially when there is a lot of edema, needle electrode recording is needed.

Superficial Peronial Nerve

We record the action potential with a bar electrode placed 2 fingerbreadths anterior to the lateral malleolus at the ankle. The nerve is stimulated 12cm proximal to the recording electrode on the anterolateral aspect of the leg overlying the fibula.

You can calculate velocities by stimulating the nerve at two points along its course.

Saphenous Nerve

The response is obtained from a bar recording electrode placed over the medial aspect of the tibia with the active electrode at 3 to 4 fingerbreadths above the medial malleolus. The nerve is stimulated 14 cm proximal to the active electrode with the stimulator probes tucked underneath the medial edge of the tibia.

	GUIDES & INFORMATION
		Electronic EMG Manual®
		Peripheral Nerves Anatomy
		General Muscles Anatomy
		Nerve Conduction Set-Ups
		Needle EMG Anatomy Atlas
		Patient Education Series (FAQ)
		Nerve Entrapment Guide

Previous Chapter | Next Chapter

This page was last updated on Sunday, March 04, 2012