Abstract
SUMMARYDuring the last two decades ultrasound guidance has been established as an invaluable tool for performing peripheral nerve blocks. Ultrasound guidance reduces block performance time, volume of local anesthetic, risk of intravascular injection and need for opioid rescue analgesia compared to landmark based and neurostimulator guided techniques. The use of ultrasound guidance must not be understood as a surrogate to, but should complement a thorough understanding of anatomy. The purpose of this overview is to present ultrasound guided techniques for performing basic lower extremity blocks, as well as to discuss more recent trends in providing regional analgesia for patients undergoing lower extremity surgery.
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