12 – Scanning technique at the elbow

Place the patient supine with the forearm externally rotated

Place the high-frequency linear probe in the axial plane at the elbow crease

Visualize the pulsatile brachial artery

Slide the probe laterally and a bit proximal and visualize the radial nerve on top of the lateral humeral epicondyle (see next page)

Insert the needle with in-plane technique either from the medial or the lateral end of the probe

Inject 3-5 mL of local anaesthetic perineurally