Le Fort, Zygomatic and Orbital Fractures: Trauma Guide

When a high-energy blow — a road accident, a fall from height, a ball to the face — strikes the midface, the thin bones around the eyes, nose and cheekbones break in predictable patterns. The three classics are Le Fort fractures (midface separates from the skull), zygomatic fractures (cheekbone breaks) and orbital fractures (eye-socket walls break).

These matter beyond looks: the midface carries the upper teeth, so fractures wreck the bite; the orbit guards the eye, so fractures threaten vision; the cheekbone shapes the face, so fractures flatten it. Missed injuries mean permanent double vision, a sunken eye or a bite that never fits again.

Key Concepts

• Le Fort I: horizontal break above the upper teeth — the whole tooth-bearing jaw moves as one piece.
• Le Fort II: pyramidal break through the nose and under the eyes — the central face moves.
• Le Fort III: the entire face separates from the skull base ("craniofacial disjunction").
• Zygomatic (tripod) fracture: the cheekbone breaks at its three joints and often rotates inward.
• Orbital blowout fracture: a blow to the eyeball cracks the thin socket floor; eye contents can herniate into the sinus.
• Diplopia and enophthalmos: double vision from a trapped eye muscle and a sunken eye — the two danger signs.

How It Works

1. Check vision and brain first. Test eye movements and sight; Le Fort II/III can accompany skull-base injury and fluid leaks.
2. Test mobility. Rock the upper teeth gently — a mobile upper jaw suggests Le Fort I; a mobile nose bridge suggests Le Fort II.
3. Confirm with CT. CT with 3D reconstruction maps every fracture line; plain X-rays miss too much here.
4. Reposition the bones. Use the bite as the reference for Le Fort fractures and the opposite cheek for zygomatic ones.
5. Fix with plates. Titanium plates anchor the midface to the skull's strong pillars while bone heals over about 6 weeks.
6. Repair the orbit if needed. Persistent double vision or a sunken eye gets an orbital floor implant restoring socket volume.

Worked Example

A 30-year-old motorcyclist has a flattened right cheek, cheek numbness and double vision looking up. CT shows a zygomatic fracture displaced 6 mm inward plus a 2 cm² orbital floor defect. The surgeon repositions the cheekbone and fixes it with two miniplates × 4 screws = 8 screws. The floor defect is covered with titanium mesh cut to 2.5 × 1.5 cm = 3.75 cm², slightly larger than the defect for overlap. At 3 months the contour matches the left side, numbness is fading, and double vision is gone.

Common Misconceptions

• "A black eye is just a bruise." After real trauma it can hide a blowout fracture — lasting double vision needs a CT, not ice.
• "Cheekbone fractures always need surgery." Undisplaced ones with no functional problem often heal with observation.
• "Post-trauma nosebleed is always from the nose." Clear watery nasal fluid after midface trauma may be cerebrospinal fluid — a red flag.

Real-World Applications

• Road-traffic trauma units assessing midface fractures in head injuries.
• Emergency eye-movement testing deciding whether orbital surgery is urgent.
• Faceguard and helmet design targeting these exact fracture patterns.

Le Fort, zygomatic and orbital fractures follow classic patterns a careful exam — bite, cheek contour, eye movements — reveals before CT confirms. Protect vision first, restore the bite second, rebuild shape third, and most patients return to normal function and appearance.