What is a ZMC?
The zygomaticomaxillary complex (ZMC) plays a key role in the structure, function, and aesthetic appearance of the facial skeleton. It provides normal cheek contour and separates the orbital contents from the temporal fossa and the maxillary sinus.
What is zygomatic arch?
zygomatic arch, bridge of bone extending from the temporal bone at the side of the head around to the maxilla (upper jawbone) in front and including the zygomatic (cheek) bone as a major portion. The zygomatic arch is particularly large and robust in herbivorous animals, including baboons and apes.
What is a zygomatic fracture?
A zygomatic complex fracture is a fracture that involves the zygoma and its surrounding bones. The typical lines of a zygomatic complex fracture are: A fracture emanating from the inferior orbital fissure superiorly along the sphenozygomatic suture to the frontozygomatic suture where it crosses the lateral orbital rim.
What is the purpose of the zygomatic arch?
The function of the zygomatic arch is protection of the eye, origin for the masseter and part of the temporal muscles, and to provide an articulation for the mandible. The zygomatic arch is approached by an incision made along its ventral border.
How is the zygomatic arch formed in radiology?
Knipe, H. Zygomatic arch. Reference article, Radiopaedia.org. (accessed on 16 Sep 2021) https://radiopaedia.org/articles/43188 The zygomatic arch is formed by the union of the temporal process of the zygomatic bone and the zygomatic process of the temporal bone at the zygomaticotemporal suture.
What kind of fractures are called zygomaticomaxillary fractures?
Zygomaticomaxillary complex (ZMC) fractures, also known as tripod, tetrapod, quadripod, malar or trimalar fractures, are seen in the setting of traumatic injury to the face. They comprise fractures of the: zygomatic arch.
Which is the third most common facial bone fracture?
Mildly displaced comminuted fracture of the left zygomatic arch shows up to 37 degrees of inwards angulation. The zygomatic arch is the third most common fractured facial bone, with a high majority of those cases being male.