What is Lefort classification involves which bone fracture? and explain in detail?
Ans. is 'a' i.e., Maxilla Fracture of maxillao It is classified into 3 types : -Le Fort I (transverse) fracture runs above and parallel to the plate. It crosses lower part of nasal septum, maxillary antra and the pterygoid plates.Le Fort II (pyramidal) fracture passes through the root of nose, lacrimal bone, floor of orbit, upper part of maxillary sinus and pterygoid plates. This fracture has some features common with the zygomatic fractures.Le Fort III (craniofacial dysfunction). There is complete separation of facial bones from the cranial bones. The fracture line passes through root of nose, ethmofrontal junction, superior orbital fissure, lateral wall of orbit, frontozygomatic and temporozygomatic sutures and the upper part of pterygoid plates.