Zygomaticomaxillary (tripod) fracture: Difference between revisions

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==Background==
==Background==
*Must distinguish [[Zygomatic Arch Fracture]] from Zygomaticomaxillary (Tripod) Fracture
*Must distinguish zygomaticomaxillary (tripod) fracture from [[zygomatic arch fracture]]
**Tripod fx = fx of zygomatic arch, lat and inf orbital rims, lat wall of maxillary sinus
*Definition = fracture through:
 
**Inferior orbital rim
==Diagnosis==
**Lateral orbital wall
#Fx through:
**Zygomatic arch
## inferior orbital rim
## lateral orbital wall
## zygomatic arch
#Must r/o associated ocular injuries
#Usually requires admission and surgical repair


==Clinical Features==
*[[Facial trauma]] (blunt, medially-directed force or high-energy decceleration)
*Normally depression of tripod (cheekbone) complex
*Lower eyelid/cheek pain, swelling, and ecchymosis
*+/- [[Diplopia]] with upward gaze (due to extraocular muscle contusion/entrapment, orbital hematoma)
*+/- Trismus
*+/- [[Epistaxis]]
*+/- [[Paresthesias]] of lower lid, cheek, nose, upper lip if injury to infraorbital nerve
==Differential Diagnosis==
==Differential Diagnosis==
{{Maxillofacial trauma DDX}}
{{Maxillofacial trauma DDX}}
==Evaluation==
*CT sinus/face
*Ocular exam to evaluate for concomitant orbital injury (e.g. [[retrobulbar hematoma]], [[ruptured globe]])
==Management==
*[[Analgesia]]
*Surgical consult
*Optho consult if ocular signs/symptoms
*Antibiotic prophylaxis if extends into paranasal sinuses ([[amoxicillin-clavulanate]], [[doxycycline]], or [[clindamycin]])
**For non-operative fractures into sinus, may not need prophylactic antibiotics <ref>Malekpour, M., Bridgham, K., Neuhaus, N., Widom, K., Rapp, M., Leonard, D., … Wild, J. (2016). Utility of Prophylactic Antibiotics in Nonoperative Facial Fractures. The Journal of Craniofacial Surgery, 27(7), 1677–1680.</ref>
**No difference in soft tissue infections in three groups (no prophylaxis, short course, long course)
*Usually requires surgical repair


==Disposition==
==Disposition==
*Loss of vision or displacement: admit for IV abx and surg
*Based on discussion with surgery
**Generally may be discharged with outpatient surgical followup in 1 week


==See Also==
==See Also==
*[[Maxillofacial trauma]]
*[[Maxillofacial trauma]]


==Source==
==References==
Tintinalli's
<references/>


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

Revision as of 23:09, 30 September 2019

Background

  • Must distinguish zygomaticomaxillary (tripod) fracture from zygomatic arch fracture
  • Definition = fracture through:
    • Inferior orbital rim
    • Lateral orbital wall
    • Zygomatic arch

Clinical Features

  • Facial trauma (blunt, medially-directed force or high-energy decceleration)
  • Normally depression of tripod (cheekbone) complex
  • Lower eyelid/cheek pain, swelling, and ecchymosis
  • +/- Diplopia with upward gaze (due to extraocular muscle contusion/entrapment, orbital hematoma)
  • +/- Trismus
  • +/- Epistaxis
  • +/- Paresthesias of lower lid, cheek, nose, upper lip if injury to infraorbital nerve

Differential Diagnosis

Maxillofacial Trauma

Evaluation

Management

  • Analgesia
  • Surgical consult
  • Optho consult if ocular signs/symptoms
  • Antibiotic prophylaxis if extends into paranasal sinuses (amoxicillin-clavulanate, doxycycline, or clindamycin)
    • For non-operative fractures into sinus, may not need prophylactic antibiotics [1]
    • No difference in soft tissue infections in three groups (no prophylaxis, short course, long course)
  • Usually requires surgical repair

Disposition

  • Based on discussion with surgery
    • Generally may be discharged with outpatient surgical followup in 1 week

See Also

References

  1. Malekpour, M., Bridgham, K., Neuhaus, N., Widom, K., Rapp, M., Leonard, D., … Wild, J. (2016). Utility of Prophylactic Antibiotics in Nonoperative Facial Fractures. The Journal of Craniofacial Surgery, 27(7), 1677–1680.