Time of block performance starts from the first antiseptic skin prep on the patient to the final injection of local anesthetics. The lateral and posterior portion of the thigh will be prepped with chlorhexidine. The ultrasound probe is covered with a sterile dressing and placed in the popliteal fossa close to the popliteal crease. The tibial and common peroneal nerve is identified. A long axis slide in the cephalad direction is performed to identify the unity of the tibial and common peroneal nerve into the sciatic nerve. The 28 mm high frequency ultrasound probe is then then moved 2 or more cm cephalad and this is the level of the needle insertion. The 22G 80mm (SonoPlex Stim Cannula Pajunk Medizintechnologie Germany) needle is inserted in-plane from the lateral thigh to approach the sciatic nerve. (6) 20 cc of 1.5% mepivacaine is injected in 5 cc increments over 30 seconds. Aspiration for blood is performed before injection and after every 5 cc of injection. Circumferential spread of local anesthetics around the nerve is sought. The needle is redirected as required to achieve this goal. Injection is stopped if blood is aspirated or if there is pain on injection. The needle is then repositioned or the block abandoned on the discretion of the anesthesiologist doing the block. However, blood aspiration or pain will be noted.