Middle area of face fracture (le-fort fracture) is characterized by all except
**Core Concept**
The LeFort classification system categorizes facial fractures based on the pattern of bone separation and the location of the fracture line. The middle area of the face fracture, also known as LeFort II fracture, is characterized by a pyramidal fracture line that separates the midface from the upper face and the lower face.
**Why the Correct Answer is Right**
A LeFort II fracture involves the separation of the nasal bones, the lacrimal bones, the maxilla, and the palatine bones from the upper face and the lower face. This type of fracture is often caused by a direct blow to the face, leading to a pyramidal fracture line that extends from the orbits, through the nasal cavity, and down to the hard palate. The separation of the midface from the upper face and the lower face can result in significant displacement and instability of the facial bones.
**Why Each Wrong Option is Incorrect**
* **Option A:** Incorrect, as LeFort II fracture indeed involves separation of the nasal bones.
* **Option B:** Incorrect, as LeFort II fracture involves separation of the lacrimal bones.
* **Option C:** Incorrect, as LeFort II fracture involves separation of the maxilla and the palatine bones.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that LeFort classification is crucial in assessing the severity and complexity of facial fractures, particularly in the emergency department. A high index of suspicion for LeFort fractures is necessary to prevent delayed diagnosis and to ensure prompt and adequate treatment.
**Correct Answer:** D