Final answer:
A LeFort II fracture is a type of midface fracture that involves the bones surrounding the nose and orbit. Typical signs and symptoms include a 'floating midface' appearance, nasal deformity, orbital swelling, and numbness in the upper teeth and cheeks.
Step-by-step explanation:
A LeFort II fracture, also known as a 'pyramidal fracture,' is a type of facial fracture that involves the bones of the midface. It occurs when there is a fracture in the maxilla and the bones surrounding the nose and orbit. This fracture classically presents with signs and symptoms such as a 'floating midface' appearance, nasal deformity, flattening of the nose bridge, orbital swelling, and numbness in the upper teeth and cheeks.