How To Perform An Interscalene Nerve Block

The Sonosite SII ultrasound machine provides clear visualisation of needle and nerve during block placements, allowing precise placement of local anaesthetic with minimal patient discomfort. Interscalene nerve blocks with Sonosite II permit the placement of local anaesthetic around the roots or trunks of the brachial plexus at the level of the C6 vertebral body between the anterior and middle scalene muscles. Anaesthesiologist Dr. David Auyong MD of Seattle, Washington here reviews scanning techniques and sonographic landmarks for this procedure which is typically performed to provide anaesthesia or analgesia for surgery of the shoulder and upper arm.