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Obturator artery revisited.
José R Sañudo1, Rosa Mirapeix, Marc Rodriguez-Niedenführ
1Human Anatomy and Embryology I Department, School of Medicine, Complutense University of Madrid, 28040, Madrid, Spain.
International Urogynecology Journal
|June 10, 2011
Summary
The obturator artery (OA) typically originates from a single source, but variations exist. Understanding these anatomical differences is crucial for surgical safety.
Area of Science:
- Anatomical studies
- Vascular anatomy
- Surgical anatomy
Background:
- The obturator artery (OA) is a key vessel in the pelvic region.
- Variations in OA origin and course can impact surgical procedures.
- A unified classification for OA variability is needed.
Purpose of the Study:
- To analyze the variability of the obturator artery (OA).
- To unify existing criteria for OA classification.
- To propose a simple classification of OA for clinical application.
Main Methods:
- Dissection of 119 adult human embalmed cadavers.
- Study of OA origin and course relative to iliac and epigastric arteries.
- Statistical analysis using Chi-squared and t-tests (p < 0.05).
Main Results:
- A single origin of the OA was observed in 96.55% of cases.
- Double or triple origins of the OA were rare (3.02% and 0.43%, respectively).
- The single origin was further subclassified into six types; 58.93% showed symmetrical patterns.
Conclusions:
- Nearly 31% of OAs traverse the superior pubic ramus.
- This anatomical course presents an elevated risk during specific surgical interventions.
- A clear classification aids in anticipating and mitigating surgical risks.
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