RT Book, Section A1 Reina, Miguel A. A1 Franco, Carlo D. A1 Prats-Galino, Alberto A1 Machés, Fabiola A1 López, Andrés A1 Andrés, Jose A de A2 Hadzic, Admir SR Print(0) ID 1141730988 T1 Ultrastructural Anatomy of the Spinal Meninges and Related Structures T2 Hadzic's Textbook of Regional Anesthesia and Acute Pain Management, 2e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9780071717595 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1141730988 RD 2024/03/29 AB Recent research on the ultrastructure of the human spinal dural sac and its contents has enhanced our understanding of the microstructure of the dura mater, arachnoid layer, trabecular arachnoid, pia mater, and nerve root cuffs. This chapter reviews new and traditional concepts regarding these structures and discusses their possible clinical implications. The distribution of epidural fat and its possible role in disposition and kinetics of neuraxial injections are also discussed.