View source for Zygomatic arch fracture

==Background==
[[File:Gray188-Sphenozygomatic suture.png|thumb|Side view of skull showing zygomatic arch (arrow).]]
[[File:Processuszygomaticusossisfrontalis.png|thumb|Lateral articulation of the mandible showing zygomatic arch (arrow).]]
*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==
[[File:Zygomatic-arch.jpg|thumb|Area of tenderness and/or deformity in zygomatic arch fracture.]]
*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 DDX}}

==Evaluation==
[[File:PMC4311579 eplasty15ic05 fig1.png|thumb|CT face showing an isolated left zygomatic arch fracture impinging the coronoid of the left mandible.]]
[[File:PMC3389904 poljradiol-76-1-41-g009.png|thumb|3D reconstruction of CT examination showing acute fracture of the left zygomatic arch.]]
*CT Sinus/Face

==Management==
*[[Analgesia]]
*If concomitant sinus fracture, prophylactic [[antibiotics]] are indicated ([[amoxicillin-clavulanate]], [[doxycycline]], or [[clindamycin]])

==Disposition==
*Discharge
*Outpatient plastic surgery follow-up in 1 week

==See Also==
*[[Maxillofacial Trauma]]

==References==
<references/>

[[Category:ENT]]
[[Category:Orthopedics]]
[[Category:Trauma]]