ArticleSurgery today2026
Quantitative analysis of colon-lengthening techniques in laparoscopic low rectal cancer surgery with left colic artery preservation: a fresh cadaveric model study.
Article in Surgery today, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo quantify colonic lengthening achieved by complete splenic flexure mobilization (SFM) and high inferior mesenteric vein (IMV) ligation while preserving the left colic artery (LCA) in laparoscopic low rectal cancer surgery.
methodsStandardized LCA-preserving anterior resection was performed on 18 fresh cadavers. The additional colonic length gained after each maneuver was measured under tension-free conditions. High inferior mesenteric artery (IMA) ligation, which sacrifices the LCA, was also measured as a reference comparator.
resultsThe mean baseline resection length was 10.4 ± 6.9 cm. Additional gains: 6.3 ± 1.7 cm after SFM and 14.4 ± 2.1 cm after high IMV ligation (maximum gain under LCA preservation). As a reference, high IMA ligation (without LCA preservation) provided a lengthening of 18.4 ± 1.7 cm. In malrotation (n = 2), IMV ligation yielded only 10.2-12.3 cm of mesenteric length. BMI correlated positively with the baseline length (r = 0.529, p = 0.023).
conclusionsUnder LCA preservation, high IMV ligation provides the greatest lengthening (14.4 cm), although efficacy is reduced with malrotation. These data guide preoperative planning for tension-free anastomosis and adequate margin placement.
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