Posterior division of the internal iliac artery: Anatomic variations and clinical applications.

Abstract:

OBJECTIVE:The objective of the study was to characterize the anatomy of the internal iliac artery (IIA) and its posterior division branches and to correlate these findings to IIA ligation. STUDY DESIGN:Dissections were performed in 54 female cadavers. RESULTS:Average length of IIA was 27.0 (range, 0-52) mm. Posterior division arteries arose from a common trunk in 62.3% (66 of 106) of pelvic halves. In the remaining specimens, branches arose independently from the IIA, with the iliolumbar noted as the first branch in 28.3%, lateral sacral in 5.7%, and superior gluteal in 3.8%. The average width of the first branch was 5.0 (range, 2-12) mm. In all dissections, posterior division branches arose from the dorsal and lateral aspect of IIA. The internal iliac vein was lateral to the artery in 70.6% (12 of 17) of specimens on the left and 93.3% (14 of 15) on the right. CONCLUSION:Ligation of the IIA 5 cm distal from the common iliac bifurcation would spare posterior division branches in the vast majority of cases. Understanding IIA anatomy is essential to minimize intra-operative blood loss and other complications.

journal_name

Am J Obstet Gynecol

authors

Bleich AT,Rahn DD,Wieslander CK,Wai CY,Roshanravan SM,Corton MM

doi

10.1016/j.ajog.2007.08.063

subject

Has Abstract

pub_date

2007-12-01 00:00:00

pages

658.e1-5

issue

6

eissn

0002-9378

issn

1097-6868

pii

S0002-9378(07)01059-9

journal_volume

197

pub_type

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