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Cranial Bones: Lateral View01:27

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Related Experiment Video

Updated: Aug 19, 2025

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
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Does maxillary sinus size affect the risk for zygomatic complex fractures?

Johannes Buller1, Christoph Bömelburg1, Teresa Kruse2

  • 1Department of Oral and Craniomaxillofacial and Plastic Surgery, University of Cologne, Cologne, Germany.

Clinical Anatomy (New York, N.Y.)
|December 3, 2022
PubMed
Summary

Patients with larger maxillary sinus volumes, especially those exceeding 20,000 mm³, face a higher risk of displaced zygomatic bone fractures. Greater sinus height may indicate reduced resistance to facial trauma.

Keywords:
X-ray computedanatomycone-beam computed tomographydata analysismaxillary sinusretrospective studiesrisk factorstomographyzygomazygomatic fractures

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Radiology
  • Anatomy

Background:

  • Zygomatic bone fractures often involve adjacent anatomical structures.
  • Maxillary sinus dimensions may influence facial trauma susceptibility.

Purpose of the Study:

  • To compare maxillary sinus sizes in patients with and without zygomatic bone fractures.
  • To identify potential predictive factors for displaced zygomatic bone fractures.

Main Methods:

  • A cross-sectional study comparing computed tomography data of patients with zygomatic bone fractures (case group) to those with mandibular fractures (control group).
  • Maxillary sinus dimensions (width, height, depth, volume) were measured.
  • T-tests were used for statistical comparisons, including subgroup analysis for fracture displacement severity.

Main Results:

  • The mean maxillary sinus volume was significantly larger in the case group (19,313 mm³) compared to the control group (17,645 mm³; p=0.02).
  • Severely displaced fractures showed a more pronounced volume difference (20,354 mm³; p=0.003).
  • Sinus height was significantly greater in the case group (37.41 mm vs. 35.33 mm; p=0.002), particularly in severe fractures.

Conclusions:

  • A maxillary sinus volume exceeding 20,000 mm³ is a predictive risk factor for displaced zygomatic bone fractures.
  • Increased sinus height suggests a larger zygomaticomaxillary buttress surface area, potentially decreasing resistance to facial trauma.