Most common facial fracture (40%)
All 3 major attachments of zygoma are seperated from face
Diastasis of zygomaticofrontal suture
Due to direct blow to zygoma
All three lines of Dolan are abnormal
Other findings: trapping of extraocular muscles, restrict movement of mandible, involvement of orbital apex or optic canal
Images:
Tripod fracture:
Zygomaticofrontal fixation:
