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解剖研究乙状结肠切除术后结肠延长术。

Cadaveric Study of Colon-Lengthening Maneuvers After Sigmoidectomy.

机构信息

Division of Colorectal Surgery, Department of Surgery, Keck School of Medicine, Los Angeles, California.

出版信息

Dis Colon Rectum. 2024 Aug 1;67(8):1030-1039. doi: 10.1097/DCR.0000000000003307. Epub 2024 May 3.

DOI:10.1097/DCR.0000000000003307
PMID:38701431
Abstract

BACKGROUND

Creation of a tension-free colorectal anastomosis after left colon resection or low anterior resection is a key requirement for technical success. The relative contribution of each of a series of known lengthening maneuvers remains incompletely characterized.

OBJECTIVE

The aim of this study was to compare technical procedures for lengthening of the left colon before rectal anastomosis.

DESIGN

A series of lengthening maneuvers was performed on 15 fresh cadavers. Mean distance gained was measured for each successive maneuver, including 1) high inferior mesenteric artery ligation, 2) splenic flexure takedown, and 3) high inferior mesenteric vein ligation by the ligament of Treitz.

SETTING

Cadaveric study.

MAIN OUTCOME MEASURES

The premobilization and postmobilization position of the proximal colonic end was measured relative to the inferior edge of the sacral promontory. Measurements of the colonic length relative to the sacral promontory were taken after each mobilization maneuver. The inferior mesenteric artery, sigmoid colon, and rectum specimen lengths were measured. The distance from the inferior border of the sacral promontory to the pelvic floor was measured along the sacral curvature.

RESULTS

Mean sigmoid colon resection length was 34.7 ± 11.1 cm. Before any lengthening, baseline reach was -1.3 ± 4.2 cm from the sacral promontory. Inferior mesenteric artery ligation yielded an additional 11.5 ± 4.7 cm. Subsequent splenic flexure takedown added an additional 12.8 ± 9.6 cm. Finally, inferior mesenteric vein ligation added an additional 11.33 ± 6.9 cm, bringing the total colonic length to 35.7 ± 14.7 cm. BMI and weight negatively correlated with length gained.

LIMITATIONS

The study was limited by nature of being a cadaver study.

CONCLUSIONS

Stepwise lengthening maneuvers allow significant additional reach to allow a tension-free left colon to rectal anastomosis. See Video Abstract .

ESTUDIO CADAVRICO DE MANIOBRAS DE ALARGAMIENTO COLNICO TRAS UNA SIGMOIDECTOMA

ANTECEDENTES:La creación de una anastomosis colorrectal libre de tensión tras una resección de colon izquierdo o tras una resección anterior baja es un requisito clave para el éxito relacionado con la técnica quirúrgica. La relativa contribución de las diversas maniobras de alargamiento permanece caracterizada de manera incompleta.OBJETIVO:El propósito de este estudio fue la de comparar procedimientos técnicos de alargamiento del colon izquierdo previo a la anastomosis rectal.DISEÑO:Una serie de maniobras de alargamiento fueron realizados en 15 cadáveres frescos. La distancia promedio ganada fue medida para cada maniobra sucesiva, incluyendo (1) ligadura alta de la arteria mesentérica inferior, (2) descenso del ángulo esplénico, (3) ligadura alta de la vena mesentérica interior mediante el ligamento de Treitz.AJUSTES:Estudio cadavérico.PRINCIPALES MEDIDAS DE RESULTADO:La posición premobilizacion y postmobilizacion del extremo proximal del colon fue medido tomando en cuenta el borde inferior del promontorio sacro. Las mediciones de la longitud colónica en relación al sacro fueron tomadas luego de cada maniobra de movilización. Fueron tomadas así mismo las longitudes de la arteria mesentérica inferior, el colon sigmoides y recto. Las distancias desde el borde inferior del promontorio sacro al suelo pelvico fueron medidas a lo largo de la curvatura sacra.RESULTADOS:Average sigmoid colon resection length was 34.7 ± 11.1 cm. Prior to any lengthening, baseline reach was -1.3 ± 4.2 cm from the sacral promontory. Inferior mesenteric artery ligation yielded an additional 11.5 ± 4.7 cm. Subsequent splenic flexure takedown added an additional 12.8 ± 9.6 cm. Finally, inferior mesenteric vein ligation added an additional 11.33 ± 6.9 cm, bringing the total colonic length to 35.7 ± 14.7 cm. BMI and weight negatively correlated with length gained.LIMITACIONES:Este estudio tuvo como limitación la naturaleza de haber sido un estudio cadavérico.CONCLUSIONES:Maniobras de alargamiento permiten un alcance adicional significativo permitiendo de esta manera una anastomosis de colon izquierdo a recto libre de anastomosis. (Traducción-Dr Osvaldo Gauto ).

摘要

背景

在左半结肠切除或低位前切除后创建无张力结直肠吻合术是技术成功的关键要求。一系列已知的延长操作中的每一个的相对贡献仍然不完全确定。

目的

本研究旨在比较直肠吻合前左结肠延长的技术程序。

设计

在 15 具新鲜尸体上进行了一系列延长操作。对于每个连续的操作,测量了获得的平均距离,包括 1)肠系膜下动脉高位结扎,2)脾曲切除,和 3)Treitz 韧带结扎肠系膜下静脉。

设置

尸体研究。

主要观察指标

在相对骶骨岬的下边缘测量近端结肠末端的预移动和后移动位置。在每个移动操作后,测量结肠相对于骶骨岬的长度。测量肠系膜下动脉、乙状结肠和直肠标本的长度。沿着骶骨曲率测量从骶骨岬下边缘到骨盆底的距离。

结果

平均乙状结肠切除长度为 34.7±11.1cm。在任何延长之前,基线可达距离为从骶骨岬下-1.3±4.2cm。肠系膜下动脉结扎增加了 11.5±4.7cm。随后的脾曲切除增加了 12.8±9.6cm。最后,肠系膜下静脉结扎增加了 11.33±6.9cm,使总结肠长度达到 35.7±14.7cm。BMI 和体重与获得的长度呈负相关。

局限性

该研究的局限性在于它是一项尸体研究。

结论

逐步延长操作可显著增加吻合术的可达范围,使左半结肠无张力吻合成为可能。见视频摘要。

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