Zygomatic arch fracture

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Background

  • Must distinguish zygomatic arch fracture from Zygomaticomaxillary (Tripod) Fracture
    • Tripod fracture = fracture of zygomatic arch, lat and inf orbital rims, lat wall of maxillary sinus

Evaluation

  • Exam
    • Flattening of malar eminence
    • Eye findings
      • Eye may appear to tilt (pulling of lateral canthus)
      • Subconjunctival hemorrhage
    • Trismus (masseter spasm or impingement of temporalis muscle or coronoid process)
      • Palpate posterior surface of arch for tenderness/loss of space compared to other side

Differential Diagnosis

Maxillofacial Trauma

Orbital trauma

Acute

Subacute/Delayed

Management

  • Facial CT

Disposition

Discharge

See Also

Maxillofacial Trauma

References