The zygomatic complex, also known as the trimalar complex, is a facial bone commonly injured in low-velocity trauma. Lateral trauma will sometimes produce an isolated zygomatic arch fracture; however, more severe force can fracture the entire zygomatic complex.
Although commonly referred to as a "tripod" fracture, this name is a misnomer: a zygomatic complex fracture constitutes four discrete fractures.
The components of this fracture are
(1) the zygomatic arch,
(2) the orbital rim,
(3) the frontozygomatic buttress, and
(4) the zygomatico-maxillary buttress.
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