Interscalene

Last updated: February 9, 2026

For

Shoulder, distal clavicle, proximal humerus

Needle

22G 50mm

Target

Start Supraclavicular, probe on clavicle. Locate nerve bundles. Scan towards head. Aiming between Anterior Scalene Muscle and Middle Scale Muscle, below the sternocleidomastoid.

Tricks

Phrenic nerve will be taken out 100%. do not slip down into supraclavicular/superior trunk view once in position. C6 is usually a double bundle → be sure to NOT inject medication in there. You can inject meds between C5 and C6.