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Variability in the branching pattern of the internal iliac artery in Indian population and its clinical importance.

Sakthivelavan S, Aristotle S, Sivanandan A, Sendiladibban S, Felicia Jebakani C - Anat Res Int (2014)

Bottom Line: The larger branches, namely, the inferior gluteal artery, the superior gluteal artery, and the internal pudendal artery, show sufficient regularity in their patterns of origin to allow typing.In significant number of specimens, IIA terminated without dividing into 2 trunks as against the usual description.Conclusion.

View Article: PubMed Central - PubMed

Affiliation: Department of Anatomy, Madha Medical College and Hospital, Chennai, Tamil Nadu 600122, India.

ABSTRACT
Internal iliac artery (IIA) is one of the terminal branches of the common iliac artery and is the prime artery of pelvis. The artery has many parietal and visceral branches and hence the variations are frequently noted. The larger branches, namely, the inferior gluteal artery, the superior gluteal artery, and the internal pudendal artery, show sufficient regularity in their patterns of origin to allow typing. The variability of the IIA and its branching pattern were studied by dissecting sixty-eight male pelvic halves (34 right and 34 left) and forty-eight female pelvic halves (24 right and 24 left sides). In significant number of specimens, IIA terminated without dividing into 2 trunks as against the usual description. There was also considerable interchange of branches between the 2 terminal divisions. The patterns of branching noted were grouped as per Adachi's classification. The incidence was noted to be as follows: type Ia in 60.6%, type Ib in 2.6%, type IIa in 15.8%, and type III in 21%. The other types were not observed in this study. Conclusion. Interventions in the pelvic region must take into account the variability of the IIA and its branches that can modify the expected relations and may lead to undesired hemorrhagic or embolic accidents.

No MeSH data available.


Related in: MedlinePlus

Left pelvic half shows type Ib Adachi's classification—superior gluteal artery arises separately from internal iliac artery and a common trunk for inferior gluteal artery and internal pudendal artery divides distal to the pelvic floor. IIA: internal iliac artery; IG: inferior gluteal artery; SG: superior gluteal artery; IP: internal pudendal artery.
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fig2: Left pelvic half shows type Ib Adachi's classification—superior gluteal artery arises separately from internal iliac artery and a common trunk for inferior gluteal artery and internal pudendal artery divides distal to the pelvic floor. IIA: internal iliac artery; IG: inferior gluteal artery; SG: superior gluteal artery; IP: internal pudendal artery.

Mentions: The superior gluteal artery arose separately from the IIA, and the inferior gluteal and internal pudendal vessels are given off by a common trunk in 63.2%. The common trunk divided within the pelvis, that is, type Ia (Figure 1), in 60.6% (70 specimens; 42 male and 28 female pelvic halves) whereas the bifurcation occurred below the pelvic floor that is, type Ib (Figure 2) in 2.6% (3 specimens; 2 male and 1 female pelvic halves). The superior and inferior gluteal arteries arose by a common trunk that divided proximal to the pelvic floor and the internal pudendal vessel separately that is, type IIa (Figure 3), in 15.8% (18 specimens; 9 male and 9 female pelvic halves). The three branches arose separately from IIA, that is, type III (Figure 4), in 21% (25 specimens; 15 male and 10 female pelvic halves). Types IIb, IV, and V were not noted in any of the specimens.


Variability in the branching pattern of the internal iliac artery in Indian population and its clinical importance.

Sakthivelavan S, Aristotle S, Sivanandan A, Sendiladibban S, Felicia Jebakani C - Anat Res Int (2014)

Left pelvic half shows type Ib Adachi's classification—superior gluteal artery arises separately from internal iliac artery and a common trunk for inferior gluteal artery and internal pudendal artery divides distal to the pelvic floor. IIA: internal iliac artery; IG: inferior gluteal artery; SG: superior gluteal artery; IP: internal pudendal artery.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4279881&req=5

fig2: Left pelvic half shows type Ib Adachi's classification—superior gluteal artery arises separately from internal iliac artery and a common trunk for inferior gluteal artery and internal pudendal artery divides distal to the pelvic floor. IIA: internal iliac artery; IG: inferior gluteal artery; SG: superior gluteal artery; IP: internal pudendal artery.
Mentions: The superior gluteal artery arose separately from the IIA, and the inferior gluteal and internal pudendal vessels are given off by a common trunk in 63.2%. The common trunk divided within the pelvis, that is, type Ia (Figure 1), in 60.6% (70 specimens; 42 male and 28 female pelvic halves) whereas the bifurcation occurred below the pelvic floor that is, type Ib (Figure 2) in 2.6% (3 specimens; 2 male and 1 female pelvic halves). The superior and inferior gluteal arteries arose by a common trunk that divided proximal to the pelvic floor and the internal pudendal vessel separately that is, type IIa (Figure 3), in 15.8% (18 specimens; 9 male and 9 female pelvic halves). The three branches arose separately from IIA, that is, type III (Figure 4), in 21% (25 specimens; 15 male and 10 female pelvic halves). Types IIb, IV, and V were not noted in any of the specimens.

Bottom Line: The larger branches, namely, the inferior gluteal artery, the superior gluteal artery, and the internal pudendal artery, show sufficient regularity in their patterns of origin to allow typing.In significant number of specimens, IIA terminated without dividing into 2 trunks as against the usual description.Conclusion.

View Article: PubMed Central - PubMed

Affiliation: Department of Anatomy, Madha Medical College and Hospital, Chennai, Tamil Nadu 600122, India.

ABSTRACT
Internal iliac artery (IIA) is one of the terminal branches of the common iliac artery and is the prime artery of pelvis. The artery has many parietal and visceral branches and hence the variations are frequently noted. The larger branches, namely, the inferior gluteal artery, the superior gluteal artery, and the internal pudendal artery, show sufficient regularity in their patterns of origin to allow typing. The variability of the IIA and its branching pattern were studied by dissecting sixty-eight male pelvic halves (34 right and 34 left) and forty-eight female pelvic halves (24 right and 24 left sides). In significant number of specimens, IIA terminated without dividing into 2 trunks as against the usual description. There was also considerable interchange of branches between the 2 terminal divisions. The patterns of branching noted were grouped as per Adachi's classification. The incidence was noted to be as follows: type Ia in 60.6%, type Ib in 2.6%, type IIa in 15.8%, and type III in 21%. The other types were not observed in this study. Conclusion. Interventions in the pelvic region must take into account the variability of the IIA and its branches that can modify the expected relations and may lead to undesired hemorrhagic or embolic accidents.

No MeSH data available.


Related in: MedlinePlus