Transverse fracture of maxilla is

Le Fo-I fracture or transverse fracture of maxilla runs above and parallel to the palate. It crosses the lower pa of nasal septum, maxillary antra and the pterygoid plates. Le Fo II fracture is a pyramidal fracture passing through the root of the nose, lacrimal bone, floor of the orbit, upper pa of the maxillary sinus and pterygoid plates. This fracture has some features common with zygomatico fractures. Le Fo III ( Craniofacial dysjunction)This is complete separation of facial bones from the cranial bones. Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 207