Does ultrasound guidance improve the efficacy of dorsal penile nerve block in children?

Background: Penile nerve block (PNB) is a well-established technique used for circumcision; it requires the injection of local anesthetics close to the dorsal nerve of the penis. The goal of this study was to compare the efficacy of ultrasound-guided PNB versus the classical landmark-based technique (LBT) in children undergoing circumcision.

Methods: Forty boys, aged 1-14 years old that were scheduled for circumcision were randomly assigned to ultrasound-guided and landmark-based groups.