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Related Experiment Video

Updated: Nov 21, 2025

Evaluation of Patients' Posture and Gait Profile After Lumbar Fusion Surgery by Video Rasterstereography and Treadmill Gait Analysis
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Surface anatomy and lumbar lordosis angle.

Gülay Açar1, Aynur Emine Çiçekcibaşı2, Mustafa Koplay3

  • 1Department of Anatomy, Meram Faculty of Medicine, Necmettin Erbakan University, 42090, Meram, Konya, Turkey. gulayzeynep73@gmail.com.

Anatomical Science International
|January 16, 2021
PubMed
Summary

Understanding abdominal surface anatomy and anatomical planes aids surgical planning. Lumbar lordosis angle influences great vessel bifurcation levels, crucial for safer surgical interventions.

Keywords:
Abdominal planesAortic bifurcationComputed tomographyLumbar lordosis angleSurface anatomy

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Area of Science:

  • Anatomy
  • Radiology
  • Surgical Education

Background:

  • Surface anatomy comprehension is vital for anatomical education and surgical planning.
  • Abdominal anatomical planes offer a framework for understanding surface anatomy.
  • Lumbar lordosis angle's impact on vertebral levels of great vessels requires investigation.

Purpose of the Study:

  • To assess the utility of anatomical planes in understanding abdominal surface anatomy.
  • To determine the effect of lumbar lordosis angle on the vertebral level of great vessel bifurcation.
  • To enhance anatomical education and surgical planning through precise anatomical knowledge.

Main Methods:

  • Retrospective analysis of computed tomography angiography images from 155 patients (age 18-82).
  • Identification and measurement of vertebral levels for celiac truncus, superior mesenteric artery, portal vein confluence, renal arteries, inferior mesenteric artery, aortic bifurcation (AB), and inferior vena cava (IVC) confluence.
  • Measurement of AB angle, IVC angle, and lumbar lordosis angle.

Main Results:

  • Key vessels like the celiac truncus and superior mesenteric artery were often aligned with the transpyloric plane.
  • The aortic bifurcation (AB) was predominantly at L4, within the umbilical plane in 73.1% of patients.
  • A decreased lumbar lordosis angle correlated with a downward shift in AB and IVC levels.

Conclusions:

  • Anatomical planes are valuable for comprehending abdominal surface anatomy and guiding surgical approaches.
  • Lumbar lordosis significantly influences the vertebral level of the aortic bifurcation and IVC confluence.
  • Precise knowledge of these anatomical relationships is critical for safe and effective anterior lumbosacral spine surgery.