Fig. 2From: Single injection technique with ultrasound-guided superficial cervical fascia block combined with brachial plexus block in clavicular surgery: a prospective randomized comparative trialSingle injection for superficial cervical fascia block combined with brachial plexus block under ultrasound guidance. SCM: Chest clavicle muscle, SA: Anterior oblique muscle; SM: Middle oblique muscle; LA: Local anaesthetic; Blue arrow: puncture needle with shallow fascia block of the neck; White arrow: needle route of brachial plexus nerve blockBack to article page