Effect of Fascia Penetration on Sensory Nerve Conduction in the Superficial Radial Nerve

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Abstract

Purpose:

The aim of this study was to identify the effects of fascia penetration on superficial radial sensory nerve action potential amplitude.

Methods:

The penetration point (PP) at which the nerve penetrated the brachioradialis fascia and became superficial was observed using ultrasonography. The sensory nerve action potential amplitude was measured at five points: the penetration point, 2 and 4 cm proximal to the PP, and 2 and 4 cm distal to the PP.

Results:

The sensory nerve action potential amplitude at the penetration point and at 2 and 4 cm distal to the PP was significantly larger than that at 2 and 4 cm proximal to the PP. The largest amplitude was obtained 2 cm distal to the PP.

Conclusions:

The sensory nerve action potential of the superficial radial nerve changes significantly around the fascia penetration point.

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