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Anatomy · Head and neck: Le Fort fractures
Sample itemAfter a road accident, a patient's upper teeth and hard palate move as a single unit independent of the rest of the face. The nasal bridge and orbital margins are stable. Which fracture is this?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Le Fort I (horizontal maxillary fracture)
The Le Fort I fracture is a horizontal fracture of the maxilla above the teeth, separating the alveolar process and hard palate (floating palate) from the upper face. Le Fort II involves the nasal bridge, medial orbit and infraorbital margin, and Le Fort III detaches the facial skeleton from the cranial base.
Option by option
A. Le Fort III (craniofacial dysjunction)
Le Fort III separates the entire midface at the zygomatic arch, orbit and nasofrontal region.
B. Le Fort II (pyramidal midface fracture)
Le Fort II moves the nose with the maxilla because the fracture crosses the nasal bridge and infraorbital rim.
C. Le Fort I (horizontal maxillary fracture) (correct)
Correct. The palate and alveolar process float freely in Le Fort I.
D. Isolated zygomatic tripod fracture
A tripod fracture involves the zygoma and does not make the palate mobile.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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