The zygomatic bone forms the prominence of the cheek and the lateral orbital wall, articulating with the frontal, temporal, maxillary, and sphenoid bones to form part of the zygomatic arch.
The zygomatic bone (malar bone) is the most commonly fractured facial bone after the nasal bones. Tripod or trimalar fractures involve all three sutures simultaneously from a lateral blow, producing cheek flattening, periorbital ecchymosis, infraorbital nerve paraesthesia, and trismus from coronoid impingement. Surgical elevation and fixation through multiple access incisions is required for significantly displaced fractures to prevent permanent facial asymmetry.
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