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Exploring the Branching Pattern of the Posterior Division of the Internal Iliac Artery: An Analysis Based on 75

Paweł Hajdyła1, Patryk Ostrowski1,2, Michał Bonczar1,2

  • 1Department of Anatomy, Jagiellonian University Medical College, Mikołaja Kopernika 12, 33-332, Kraków, Poland.

International Urogynecology Journal
|October 9, 2024
PubMed

Insights

Understanding the posterior division of the internal iliac artery (PDIIA) is crucial for pelvic surgery. This study details PDIIA variations and introduces a new classification system to improve surgical outcomes and manage pelvic hemorrhage.

Area of Science:

  • Vascular anatomy
  • Pelvic surgery
  • Radiology

Background:

  • The internal iliac artery is the primary pelvic blood supply.
  • Significant anatomical variations exist in its branching patterns.
  • The posterior division of the internal iliac artery (PDIIA) shows variable topography and origin.

Purpose of the Study:

  • To determine anatomical variations, prevalence, and morphometric data of the PDIIA and its branches.
  • To provide insights for surgical interventions managing pelvic hemorrhage.
  • To develop a novel classification system for PDIIA branching patterns.

Main Methods:

  • Retrospective study analyzing 75 computed tomography angiographies.
  • Evaluation of anatomical variations, prevalence, and morphometric data of the PDIIA.
  • Development of a new classification system based on observed variability.

Main Results:

  • The superior gluteal artery was the most prevalent branch of the PDIIA (77.03%).
  • Median diameter of the PDIIA at origin: 6.66 mm.
  • Median cross-sectional area of the PDIIA at origin: 34.59 mm².

Conclusions:

  • Understanding PDIIA anatomy is critical for pelvic hemorrhage control.
  • Precise localization and characteristics of PDIIA are essential for targeted surgical procedures.
  • A novel six-type classification system was created due to high branching pattern variability.
Abstract

Keywords:
AnatomyInternal iliac arteryPelvisSurgeryVariation

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