Ultrasound-guided posterior approach for the placement of a continuous interscalene catheter.

Background And Objectives: The posterior approach to performing a continuous brachial plexus block at the level of the nerve roots has been described using traditional superficial landmarks. We describe an ultrasound-guided approach for the placement of a continuous interscalene brachial plexus catheter at the level of the nerve roots using a posterior approach. In addition, we provide the clinical characteristics of the first 16 catheters placed at our institution utilizing this approach.