TY - CHAP M1 - Book, Section TI - Obturator Nerve Block A1 - Bouaziz, Herve A2 - Hadzic, Admir Y1 - 2017 N1 - T2 - Hadzic's Textbook of Regional Anesthesia and Acute Pain Management, 2e AB - Selective obturator nerve block was first described by Gaston Labat in 1922.1 More interest in obturator nerve block emerged a few years later when Victor Pauchet, Sourdat, and Gaston Labat stated, “obturator nerve block combined with blocks of the sciatic and femoral nerves, anesthetized the entire lower limb.” However, a lack of clear anatomic landmarks, the block complexity, and inconsistent results were the reasons why this block had been used infrequently. Historically, Labat’s classic technique remained forgotten until 1967, when it was modified by Parks.2 In 1993, the interadductor approach was described by Wassef,3 which was further modified by Pinnock in 1996.4 In 1973, Alon Winnie introduced the concept of the “3-in-1 block,” an anterior approach to the lumbar plexus using a simple paravascular inguinal injection to anesthetize the femoral, lateral cutaneous and obturator nerves.5 Since its description however, many studies have refuted the ability of the 3-in-1 block to reliably block the obturator nerve with this technique. With the introduction of modern nerve stimulators, and particularly ultrasound guidance selective blockade of the obturator nerve has become more reliable. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/29 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1141739631 ER -