Caudal Epidural Block: An Updated Review of Anatomy and Techniques
Color Doppler ultrasonography in longitudinal view of sacral hiatus. A predominantly one-color spectrum is observed in the sacral hiatus during caudal epidural injection. The inset shows the position of the ultrasound transducer. BS: base of sacrum; SCL: sacrococcygeal ligament; SH: sacral hiatus.
Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.