Fig. 2From: Effect of manipulation technique using ultrasound-guided cervical nerve root block on range of motion at the shoulder joint in frozen shoulder: a retrospective studyUltrasound-guided C5 and C6 nerve root block. a With the patient in the half side-lying or lateral recumbent position, 12–15 mL of 1% mepivacaine is injected into the C5 and C6 nerve roots under ultrasound guidance. b Level where C5 and C6 form the truncus superior. The white arrowhead is C5, the black arrowheads are C6, and the white arrow is the needle tip. VA, vertebral arteryBack to article page