Sciatic Nerve Block for Ankle and Leg Fracture Manipulation in the Emergency Department

Patients will be scanned with the ultrasound machine to determine the technical feasibility of sciatic nerve blocks. If feasible, one of the following techniques will be performed a) popliteal sciatic nerve block, with either lateral or posterior approach; b) CAPS (crosswise approach to popliteal sciatic) block, with either lateral to medial or anterolateral to posteromedial approach; c) subgluteal sciatic nerve block; d) transgluteal sciatic nerve block. In all cases, 20 mL of 2% Lidocaine will be used.