RESUMO Background and Objectives -The sciatic nerve may be blocked by several routes, all of them with advantages and disadvantages. It is the largest human nerve in diameter and length, being the prolongation of the upper sacral plexus fascicle (L 4 ,L 5 ,S 2 and S 3 ). It leaves the pelvis through the foramen ischiadicum majus, passing below the piriform muscle and going down between the greater trochanter and the ischial tuberosity, continuing along the femoral dorsum, anterior to biceps femoris and semitendinous muscles, to the lower femoral third, where it is divided in two major

RESUMO horas). Houve falha do bloqueio de um dos 3 nervos em 3 p a c i e n t e s . A i n c i d ê n c i a d e n á u s e a e p r u r i d o f o i 4, 8, 12, 14, 16, 20 and 24 hours after surgery completion, in