Ultrasound-Guided Combined Interscalene-Cervical Plexus Block for Surgical Anesthesia in Clavicular Fractures: A Retrospective Observational Study

Figure 3

Position of the needle and local anesthetic distribution between the scalene muscles around the nerves in the interscalene region during the performance of the interscalene block. The arrows are showing the body and the tip of the needle.