What is not seen in middle 3rd fracture in face-
**Core Concept**
A middle third fracture of the face, also known as a Le Fort fracture, is a type of facial trauma that involves a break in the maxillary bone. This injury can lead to significant morbidity and requires prompt medical attention. The fracture can be further classified into three types: Le Fort I, II, and III, each with distinct characteristics and clinical implications.
**Why the Correct Answer is Right**
In a middle third fracture of the face, specifically a Le Fort III fracture, the maxillary bone is completely separated from the facial bones and the skull base. This type of fracture is characterized by a "floating palate" and is often associated with significant facial disfigurement and potential complications such as respiratory distress and epistaxis. The fracture does not involve the orbital rim or the zygomatic bone, which is in contrast to other types of Le Fort fractures.
**Why Each Wrong Option is Incorrect**
* **Option A:** Not applicable as the question is incomplete.
* **Option B:** Not seen in middle third fractures, but rather in Le Fort I fractures, which involve a horizontal fracture line through the maxillary bone, just above the teeth.
* **Option C:** Not seen in middle third fractures, but rather in Le Fort II fractures, which involve a pyramidal fracture line through the maxillary bone, involving the nasal bones and the lacrimal bone.
* **Option D:** Not seen in middle third fractures, but rather in Le Fort III fractures, which involve a complete separation of the maxillary bone from the facial bones and the skull base.
**Clinical Pearl / High-Yield Fact**
A key characteristic of Le Fort III fractures is the presence of a "floating palate," which is a result of the complete separation of the maxillary bone from the rest of the facial bones.
**Correct Answer:** D. Not seen in middle third fractures, but rather in Le Fort III fractures, which involve a complete separation of the maxillary bone from the facial bones and the skull base.