Background
Zygomatic arch, which is the connection between the zygomatic process and the zygomatic bone, forms the most protruding outline of the midface. Depressed zygomatic arch fracture can cause pain and trismus due to hindrance on movement of the coronoid process of mandible. The main purpose of surgical intervention in zygomatic arch fracture is to restore its anatomy and to provide freedom of mandibular movement [1]. The type, location, magnitude and direction of displacement of zygomatic arch fractures can be determined by plain film radiograph like submentovertex view (SMV), town’s view and CT (Computed Tomography). Although ultrasound has traditionally been used in orbital and ocular diagnosis, but its role in maxillofacial trauma is less widely recognized. McCann et al [2] and Friedrich etal [3] in their separate study has demonstrated the application of ultrasound in visualization of the zygomatic arch fracture and zygomatico-maxillary complex fracture.
It is safe, inexpensive, non-invasive, less dependent on patient cooperation, portable so easy to take the image during pre, intra and postoperative period, easily reproducible and gives information in real-time. Thus, this case report has demonstrated the utility of ultrasonography in confirmation of reduction of zygomatic arch fracture both intra and post operatively.