Comparison Between Ultrasound Guided Caudal Block and Ultrasound Guided Dorsal Penile Block in Hypospadias Surgery in Children

Patients were positioned laterally for the procedure. The ultrasound transducer was first positioned transversely at the midline to visualize the sacral cornua, sacrococcygeal ligament, sacral bone, and sacral hiatus in a transverse view. It was then rotated 90° to obtain a longitudinal view of the sacrococcygeal ligament and sacral hiatus. A 22G, 50 mm needle was inserted caudal to cranial into the sacral canal under direct real-time longitudinal ultrasound guidance

With the patient in a supine position, using aseptic precautions, a linear probe (6-13 MHz) was placed transversely at the root of the penis. The penis was held under gentle traction, and key anatomical structures, including the corpus cavernosum, corpus spongiosum, dorsal artery and vein, Buck's fascia, and tunica albuginea, were identified in the transverse plane