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. 2022 Aug 12;14(8):e27936. doi: 10.7759/cureus.27936

Figure 1. EMG needle insertion under US control.

Figure 1

The US probe is placed at the junction of the upper and middle thirds of the anterior side of the forearm. The EMG needle is inserted at the medial edge of the forearm and 2 cm away from the US probe. This needle should then follow a sloped path to the FCRM in the plane of the US section so as to be entirely viewed: this is called the US in-plane technique.

US: Ultrasound; FCRM: Flexor carpi radialis muscle; EMG: Electromyography.

Note: In this figure, a medical resident has voluntarily given his consent for demonstration purposes.