Le Fort III fracture (transverse), otherwise known as craniofacial dissociation, may follow impact to the nasal bridge or upper maxilla. The salient feature of these fractures, beyond pterygoid plate involvement, is that they invariably involve the zygomatic arch, or cheek bone.
A Le Fort III fracture (transverse) typically occurs after a blow to the nasal bridge or upper maxilla and involves the zygomatic arch, or cheekbone, in addition to the pterygoid plate. This fracture type is also known as craniofacial dissociation.