TY - JOUR T1 - Anatomical considerations for obturator nerve block with fascia iliaca compartment block JF - Regional Anesthesia & Pain Medicine JO - Reg Anesth Pain Med SP - 806 LP - 812 DO - 10.1136/rapm-2021-102553 VL - 46 IS - 9 AU - Thomas Fichtner Bendtsen AU - Erik Morre Pedersen AU - Bernhard Moriggl AU - Peter Hebbard AU - Jason Ivanusic AU - Jens Børglum AU - Thomas Dahl Nielsen AU - Philip Peng Y1 - 2021/09/01 UR - http://rapm.bmj.com/content/46/9/806.abstract N2 - This report reviews the topographical and functional anatomy relevant for assessing whether or not the obturator nerve (ON) can be anesthetized using a fascia iliaca compartment (FIC) block. The ON does not cross the FIC. This means that the ON would only be blocked by an FIC block if the injectate spreads to the ON outside of the FIC. Such a phenomena would require the creation of one or more artificial passageways to the ON in the retro-psoas compartment or the retroperitoneal compartment by disrupting the normal anatomical integrity of the FI. Due to this requirement for an artificial pathway, an FIC block probably does not block the ON. ER -