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Zygomatic Complex Fractures |
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Type 1 Undisplaced Type 2 Arch fracture only Type 3 Tripod fracture F-Z suture intact Type 4 Tripod fracture F-Z suture distracted Type 5 Blow out fracture only Type 6 Orbital rim fracture Type 7 Comminuted + other fractures
Clinical Features 1. Flattened cheek prominence 2. Swelling and bruising over cheek 3. Step deformity 4. Peri-orbital ecchymosis 5. Subconjunctival haemorrhage 6. Para/anaesthesia of infra-orbital nerve 7. Trismus and restricted lateral excursion 8. Para/anaesthesia of Z-Facial/Temporal nerves 9. Epistaxis
Radiographs ¨ Occipitometal 15 and 30 ¨ Submentovertex ¨ CT scans
Radiographic features 1. Step at infra-orbital margin 2. Separation at F-Z suture 3. Fracture at arch 4. Fracture at buttress 5. Fluid level in antrum 6. Reduced distance between coronoid process and body of zygoma
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Classification |
