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Techniques in Coloproctology

, Volume 17, Issue 4, pp 377–381 | Cite as

Lengthening of the colon for low rectal anastomosis in a cadaveric study: how much can we gain?

  • S. Thum-umnuaysuk
  • A. Boonyapibal
  • Y. Y. Geng
  • J. Pattana-arun
Original Article

Abstract

Background

Lengthening of the colon for tension-free low rectal anastomosis comprises ligation of the inferior mesenteric vessels and splenic flexure mobilization. The aim of our study was to evaluate the length gained after each level of mesenteric vessel ligation with or without splenic flexure mobilization.

Methods

The length of the colon after each mobilization technique, that is, low ligation of the inferior mesenteric artery (IMA), high ligation of IMA, high ligation of the inferior mesenteric vein (IMV), and mobilization of splenic flexure, was measured in 13 cadaveric specimens. After each step, the colon and vessels were placed back in their original position.

Results

The distance from the colosigmoid junction (CSJ) to the pubic symphysis (PS) was measured after each mobilization technique. The average elongation of the colon from original CSJ–PS distance to the CSJ–PS distance after low ligation of IMA, high ligation of IMA, high ligation of IMA plus splenic flexure mobilization, and high ligation of IMV was 2.08 ± 4.39 cm, 5.02 ± 5.51 cm, 8.20 ± 5.95 cm, and 17.98 ± 6.80 cm, respectively. The length of colon gained after IMV ligation was greater than the length obtained after low ligation of IMA, high ligation of IMA, and high ligation of IMA plus splenic flexure mobilization (p < 0.0001).

Conclusions

This study shows the objective length gained following each standard surgical technique in colonic mobilization for low rectal anastomosis. The maximum length gained is after high ligation of IMV.

Keywords

Low anterior resection Tension-free anastomosis Inferior mesenteric vein ligation Inferior mesenteric artery ligation Splenic flexure mobilization 

Notes

Acknowledgments

The authors thank Prof. Dr. Supasit Pannarunothai, Department of Community Family and Occupational Medicine, Faculty of Medicine, Naresuan University, for his suggestions regarding statistical analyses. We also thank Assistant Prof. Dr. Sutatip Pongcharoen, Research Office, Faculty of Medicine, Naresuan University for help in preparing the manuscript and Mr. Pikom Sirisopausa for drawing the figures.

Conflict of interest

None.

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Copyright information

© Springer-Verlag Italia 2012

Authors and Affiliations

  • S. Thum-umnuaysuk
    • 1
  • A. Boonyapibal
    • 2
  • Y. Y. Geng
    • 3
  • J. Pattana-arun
    • 2
  1. 1.Department of Surgery, Faculty of MedicineNaresuan UniversityPhitsanulokThailand
  2. 2.Department of Surgery, Faculty of MedicineChulalongkorn UniversityBangkokThailand
  3. 3.Department of SurgerySelayang HospitalSelayangMalaysia

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