Variation in Origin of the Obturator Artery and Corona mortis in Thai
Keywords:
Corona mortis, obturator artery, variationAbstract
Objective: To determine the variation in origin of the obturator artery and incidences of arterial and venous corona mortis among Northeast Thais.
Methods: Dissection of 204 cadaveric Northeast Thai pelvic halves between 20 and 95 years-old at decease. Chi-square test was used for statistical analysis.
Results: The respective origin of the obturator artery was the internal iliac (77.5%) and inferior epigastric arteries (22.5%), while double origins (from both arteries) in one pelvic half and bilateral abnormal origins (from the inferior epigastric arteries) were 5.4 and 9.6 percent, respectively. Sex and side made no significant difference (P>0.05). The occurrence of the arterial corona mortis, venous corona mortis and both structures was 22.5, 70.6 and 17.2 percent, respectively. The arterial corona mortis while crossing over the iliopubic ramus was frequently found anterior to the venous corona mortis.
Conclusion: The incidence of an anomalous obturator artery forming the arterial corona mortis among Northeast Thais was 22.5% although a venous corona mortis (70.6%) was more frequent. Seventeen percent had both arterial and venous corona mortis. Nevertheless, both their courses, crossing over the iliopubic rami, would be at risk of damage during an ilioinguinal approach or operation of the anterior ring of the pelvis.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following conditions:
Copyright Transfer
In submitting a manuscript, the authors acknowledge that the work will become the copyrighted property of Siriraj Medical Journal upon publication.
License
Articles are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). This license allows for the sharing of the work for non-commercial purposes with proper attribution to the authors and the journal. However, it does not permit modifications or the creation of derivative works.
Sharing and Access
Authors are encouraged to share their article on their personal or institutional websites and through other non-commercial platforms. Doing so can increase readership and citations.