Zygomatic arch fracture

Background

  • Must distinguish zygomatic arch fracture from Zygomaticomaxillary (tripod) fracture
    • Tripod fracture = fracture of zygomatic arch, lateral and inferior orbital rims, and lateral wall of maxillary sinus

Clinical Features

  • Flattening of malar eminence
  • Ipsilateral eye may appear to tilt due to pulling of lateral canthus
  • Trismus (due to 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

Evaluation

  • CT Sinus/Face

Management

Disposition

  • Discharge
  • Outpatient plastic surgery follow-up in 1 week

See Also

References