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.