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Ankle nerve blocks. A. The subcutaneous field block of the sural nerve (sur.) extends from the Achilles tendon to the lateral malleolus. The posterior tibial nerve (p.t.) is blocked just behind the posterior tibial artery. B. The deep peroneal nerve (d.per.) block is blocked at the level of the medial malleolus between the anterior tibial tendon (t.a.) and extensor hallucis longus tendon (e.h.l.). The subcutaneous field block of the superficial peroneal nerve (s.per.) extends from the lateral malleolus to the anterior tibial tendon. C. The posterior tibial nerve is blocked posteriorly to the posterior tibial artery. The subcutaneous field block of the saphenous nerve (saph.) extends from the medial malleolus to the anterior tibial tendon. See Foot and Ankle Blocks section for further details. [Courtesy of Timothy Sweeney, MD.] Source: Local and Regional Anesthesia, Tintinalli's Emergency Medicine: A Comprehensive Study Guide Citation: Tintinalli JE, Stapczynski J, Ma O, Cline DM, Cydulka RK, Meckler GD, T. Tintinalli's Emergency Medicine: A Comprehensive Study Guide; 2011 Available at: http://mhmedical.com/ Accessed: April 29, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved
