"Figure of four" position and long-axis sciatic nerve scan with ultrasound facilitates sciatic perineural catheter placement.

Continuous plexus and peripheral nerve blocks offer the potential benefits of prolonged analgesia and faster functional recovery after surgery in pediatric patients. We report the feasibility of a new patient position and long-axis nerve scan with ultrasound (US) for controlling perineural catheter placement for continuous mid-femoral sciatic nerve block in a pediatric case. We think that long-axis view of the sciatic nerve with US during placement of perineural catheters in a child is an effective technique.