Segmental Structure of the Human Kidney: An Innovative Research Algorithm

Edgar Kafarov, Imran Avduev, Zelimkhan Lechiev

Abstract


ackground: Understanding the anatomical structure of the human kidney, particularly its zonal and segmental organization, is crucial for both theoretical knowledge and practical applications in surgical procedures. That is why the purpose of the article was to study the variants of the zonal and segmental structure of human kidneys.

Methods: 116 corrosive preparations of the arterial system of the human kidney served as the material for the study. The authors identified their extra-organ branches: a) the number of arterial vessels in the kidney hilum; b) the topographic and anatomical features of the renal artery trunks. In a 3D projection, zones of local zonal blood supply to areas of the renal parenchyma were identified, depending on the di- and trichotomic variants of the division of the main renal artery, A. renalis (I).

Results: It was found that some lines of the passage of the zones of natural divisibility of the kidneys with different variants of the division of A. renalis (I). There were from 5 to 7 (6 ± 1) segments in the kidneys on average. It is possible that if a four-zone blood supply system with corresponding zones of natural kidney divisibility is found in the kidneys, where the zones mostly don’t coincide with the boundaries of the passage of segments in their classical version, the number of segments will be even greater.

Conclusion: The results of the conducted study show that considering the generally accepted zones and boundaries of the passage of segments with zones of natural divisibility, which were not previously considered, the kidneys have an individual segmental structure, which requires revision. The authors believe that the generally accepted classical five-segment kidney model is outdated.


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DOI: http://dx.doi.org/10.62940/als.v10i4.2316

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