Use of ultrasound for lower extremityGhisi, Danielaa; Delaunay, Laurentb; Fanelli, AndreacCurrent Opinion in Anaesthesiology: October 2014 - Volume 27 - Issue 5 - p 528–537 doi: 10.1097/ACO.0000000000000119 REGIONAL ANESTHESIA: Edited by Jacques E. Chelly Abstract Author Information Purpose of review: To explore the recent advances in the use of ultrasound for lower extremity blocks, including approaches to the lumbar and sacral plexus blocks. Recent findings: Procedures of the lower extremity often require blocks of the lumbar and sacral plexuses. The use of ultrasound offers some advantages, including the possibility to directly visualize the distribution of local anesthetics. Summary: Lower extremity blocks under ultrasound guidance often require advanced skills because of the depth of target nerves. This review summarizes the recent advances in the use of ultrasound guidance over traditional techniques. aDepartment of Anaesthesia and Perioperative Medicine, Istituti Ospitalieri, Cremona, Italy bDepartment of Anaesthesia, Clinique Générale, Annecy, France cDepartment of Anaesthesia and Intensive Care, Istituto Ortopedico Rizzoli, Bologna, Italy Correspondence to Laurent Delaunay, MD, Clinique Générale, 4 chemin de la tour la Reine, 74000 Annecy, France. Tel: +33 6 60 41 29 88; fax: +33 9 81 95 65 80; e-mail: email@example.com © 2014 Lippincott Williams & Wilkins, Inc.