Morphometric evaluation of the kidney and its main renal artery

Mutyalapati Venkata Ramulu, Lokadolalu Chandracharya Prasanna

Abstract


Background: With the increasing incidence of renal transplantations and advent of modern imaging techniques in the current era, the knowledge of renal artery variations in their position of origin from abdominal aorta, level of origin from the superior mesenteric artery, pattern of their division towards the renal hilum, and the additional branches from the renal arteries should be well known for preparing renovascular surgical and radiological interventions.

Methods: Fifty specimens from 25 adult human embalmed cadavers were taken from the department of anatomy and were studied by dissection method. Morphometric data of the specimens dissected were recorded using vernier calipers.

Results: Though morphometric analysis of both the kidneys was studied, it shows no significance from earlier studies. Accessory renal arteries were noted in 24% of cases with equal incidence on both sides. Within accessory, hilar type was most common (14%), followed by inferior polar in 12% and superior polar in 2% of specimens. Accessories in 28.5% specimens gave rise to gonadal arteries and 7.3% specimens to inferior phrenic artery.

Conclusion: The results suggest that there are a large number of anatomical variations in the vascularisation of the kidney. The most common incidence is the occurrence of accessory renal arteries. It was rarely found that superior and inferior polar arteries originated from the renal artery. The renal artery diameter is a factor which should be considered as predicting the presence of additional renal arteries.  

 


Keywords


Renal transplantations, Renal arteries, Morphometric data, Kidney

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References


Susan Standring. Renal arteries. In: Susan Standring, eds. Gray’s Anatomy. The Anatomical Basis of Clinical Practice. 40th ed. London: Elsevier Churchill Livingstone; 2008: 1231.

Graves FT. The aberrant renal artery. J Anat. 1956;90:553-8.

Skandalakis JE, Colborn LG, Weidman TA. The kidney. In: Skandalakis JE, Colborn LG, Weidman TA, eds. Skandalakis Surgical Anatomy: the Embryologic and Anatomic Basis of Modern Surgery. 14th ed. Athens: Paschalidis Medical Publication; 2004.

Walsh CP, Surgical anatomy of retroperitoneum: kidney and ureters. In: Walsh CP, eds. Campbell Walsh Urology. 8th ed. Philadelphia: Elsevier Saunders; 2002: 25-26.

Bergman RA, Thompson SA, Afifi AK, Saadeh FA. Renal artery. In: Bergman RA, Thompson SA, Afifi AK, Saadeh FA, eds. Compendium of Human Anatomic Variation: Catalog, Atlas, and World Literature. 2nd ed. Baltimore and Munich: Urban & Schwarzenberg; 1988: 81-82.

Budhiraj V, Rastogi R, Asthana AK. Renal artery variations: embryological basis and surgical correlation. Romanian J Morphol Embryol. 2010;51(3):533-6.

Chai JW, Lee W, Yin YH, Jae HJ, Chung JW, Kim HH, et al. CT angiography for living kidney donors: accuracy, cause of misinterpretation and prevalence of variation. Korean J Radiol. 2008;9:333-9.

Ramesh RT, Rachana. Aberrant renal arteries and its clinical significance: a case report. Int J Anat Variat (IJAV). 2011;4:37-9.

Loh HK, Gupta V, Arora J, Mehta V, Suri R, Kohli M, et al. Atypical twin renal arteries with altered hilar anatomy: a case report. Int J Anat Variat (IJAV). 2009;2:124-6.