Mandibular nerve block using echo guided para-foramen ovale approach for pain relief in mandibular osteoplasty: a case report

Abstract

During mandibular osteoplasty, ultrasound-guided mandibular nerve block for anterior face pain was performed using the Gasserian ganglion block landmarks as a reference. The skull base around the foramen ovale was visualized through echography, and ropivacaine was injected 3 cm lateral to the oral commissures when a mandibular nerve twitch was observed, symbolizing nerve stimulation. During the surgery, the patient's vitals were stabilized by a combination of a low dose opioids, which may have had some degree of analgesic effects.