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Background <p>Frontal sinus surgery is technically challenging due to anatomical variability and proximity to critical structures. Reliable anatomical landmarks are essential to minimize surgical complications.</p> Aim <p>To evaluate the distance from the columella to the nasofrontal beak (NFB) and anterior skull base (ASB) using MDCT and to assess gender-based differences.</p> Methods <p>This retrospective observational study included 264 patients (135 males, 129 females; mean age 41.24 ± 14.67 years) who underwent MDCT of the paranasal sinuses. Measurements were obtained from sagittal reconstructed images and compared between sexes. Statistical analysis included assessment of data distribution, independent sample t-test, and Pearson correlation.</p> Results <p>The mean columella–NFB and columella–ASB distances were 54.39 ± 3.49&#xa0;mm and 62.75 ± 4.37&#xa0;mm, respectively. Both measurements were significantly greater in males (<i>p</i> &lt; 0.00001). No significant correlation with age was observed, which requires further evaluation in larger studies.</p> Conclusion <p>Columella-based CT measurements may serve as useful anatomical reference points in frontal sinus surgery. However, given the retrospective and descriptive nature of the study, these findings should be interpreted cautiously. Further large-scale studies are required to validate their clinical applicability.</p>

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A retrospective MDCT-based evaluation of columella to nasofrontal beak and anterior skull base distances: implications for frontal sinus surgery

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月22日

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  • Gopika Kalsotra,
  • Aditiya Saraf,
  • Himanshu Sharma,
  • Kanchan Rani

摘要

Background

Frontal sinus surgery is technically challenging due to anatomical variability and proximity to critical structures. Reliable anatomical landmarks are essential to minimize surgical complications.

Aim

To evaluate the distance from the columella to the nasofrontal beak (NFB) and anterior skull base (ASB) using MDCT and to assess gender-based differences.

Methods

This retrospective observational study included 264 patients (135 males, 129 females; mean age 41.24 ± 14.67 years) who underwent MDCT of the paranasal sinuses. Measurements were obtained from sagittal reconstructed images and compared between sexes. Statistical analysis included assessment of data distribution, independent sample t-test, and Pearson correlation.

Results

The mean columella–NFB and columella–ASB distances were 54.39 ± 3.49 mm and 62.75 ± 4.37 mm, respectively. Both measurements were significantly greater in males (p < 0.00001). No significant correlation with age was observed, which requires further evaluation in larger studies.

Conclusion

Columella-based CT measurements may serve as useful anatomical reference points in frontal sinus surgery. However, given the retrospective and descriptive nature of the study, these findings should be interpreted cautiously. Further large-scale studies are required to validate their clinical applicability.