Evidence map›Paper›PMID 41145697›Full record

ArticleSurgical endoscopy2026

Extraction site hernia and short-term outcomes following intracorporeal versus extracorporeal anastomosis for robotic and laparoscopic right colectomy: a multi-center prospective trial.

Robert K Cleary, Matthew Silviera, Tobi J Reidy, James McCormick, Craig S Johnson, Patricia Sylla, Jamie Cannon, Henry Lujan, Andrew Kassir, Ron G Landmann and 9 more

Registry-linked trialAbstract readMulticenter StudyComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Surgical endoscopy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03312569 (A Multi-Center Prospective Comparison of Intracorporeal and Extracorporeal Anastomoses for Minimally Invasive Right Colectomy), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03312569 completednot on this map

A Multi-Center Prospective Comparison of Intracorporeal and Extracorporeal Anastomoses for Minimally Invasive Right Colectomy

TypeobservationalSponsorIntuitive SurgicalRan2018 to 2023Enrolled306ConditionsBenign Right Colon Disease, Malignant Right Colon DiseaseArmsRight Colectomy with Intracorporeal Anastomosis, Right Colectomy with Extracorporeal Anastomosis
3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Essential Updates 2024-2026: Advances in Colorectal Cancer Surgery.Annals of gastroenterological surgery · 2026
    Review
  2. Robotic-assisted right colectomy with the DEXTERTechniques in coloproctology · 2026
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

19 authors.

Robert K ClearyDepartment of Surgery, Trinity Health Hospital, 5325 Elliott Drive, Ste 104, Ann Arbor, MI, 48106, USA. clearyrk@gmail.com.ORCID 0000-0001-6375-7156
Matthew SilvieraDepartment of Surgery, Washington University School of Medicine, St. Louis, MO, USA.
Tobi J ReidyDepartment of Surgery, Franciscan Health Indianapolis, Indianapolis, IN, USA.
James McCormickColon and Rectal Surgery, Allegheny Health Network, Pittsburgh, PA, USA.
Craig S JohnsonDepartment of Surgery, Oklahoma Surgical Hospital, Tulsa, OK, USA.
Patricia SyllaDivision of Colorectal Surgery, Department of Surgery, Mount Sinai Hospital, New York, NY, USA.
Jamie CannonDepartment of Surgery, University of Arkansas, Little Rock, AR, USA.
Henry LujanColon and Rectal Surgery, Jackson Health System, Miami, FL, USA.
Andrew KassirColon and Rectal Clinical, Honor Health, Scottsdale, AZ, USA.
Ron G LandmannDepartment of Colon Rectal Surgery, Baptist MD Anderson Cancer Center, Jacksonville, FL, USA.
Wolfgang GaertnerDivision of Colon and Rectal Surgery, University of Minnesota, Minneapolis, MN, USA.
Edward LeeDepartment of Surgery, Albany Medical College, Albany, NY, USA.
Amir L BastawrousColon and Rectal Clinic, Swedish Medical Center, Seattle, WA, USA.
Ovunc BardakciogluDepartment of Colorectal, Las Vegas School of Medicine, University of Nevada, Las Vegas, NV, USA.
Sushil PandeyWest Valley Colon and Rectal Surgery Center, Sun City, AZ, USA.
Vikram AttaluriColon and Rectal Surgery, Kaiser Permanente Los Angeles Medical Center, Los Angeles, CA, USA.
Mitchell BernsteinDivision of Colon and Rectal Surgery, NYU Langone Medical Center, New York, NY, USA.
Vincent ObiasDivision of Colon and Rectal Surgery, Johns Hopkins University, Baltimore, MD, USA.
Alessio PigazziDivision of Colon and Rectal Surgery, City of Hope Orange County, Irvine, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies have shown outcomes advantages of intracorporeal compared to extracorporeal anastomosis during minimally invasive right colectomy that include less conversion to open, faster return of bowel function, and shorter hospital length of stay. The extracorporeal anastomosis and specimen extraction incision are often midline and may be associated with incisional hernias. The study aim was to determine if intracorporeal right colectomy is associated with fewer incisional hernias.

methodsThis is the final data analysis for the ANastomotic COmparison in Right Colectomy (ANCOR) prospective multi-center study designed to compare laparoscopic- or robotic-assisted intracorporeal versus extracorporeal anastomoses in patients undergoing minimally invasive right colectomy for benign or malignant neoplasia. The primary outcome was the extraction site incisional hernia rate at 2 years. Secondary outcomes included hospital length of stay and short-term complications. Descriptive statistics [mean with standard deviation and median with interquartile range (IQR)] were applied using SAS 9.4.

results150 patients (30 laparoscopic and 120 robotic assisted) underwent intracorporeal anastomosis, and 150 patients (120 laparoscopic and 30 robotic assisted) underwent extracorporeal anastomosis. All extracorporeal specimen extraction sites were midline. Intracorporeal extraction sites were off-midline in 98.7%. At 2 years, extraction site hernias were significantly more common in the extracorporeal group (10.1% vs. 1.9%, p = 0.013), with only one hernia repaired in the intracorporeal group. The intracorporeal group had significantly fewer conversions to open (0% vs. 4.7%, p < 0.0001), shorter extraction site incisions (4.9 cm vs. 6.0 cm, p < 0.0001), shorter time to gastrointestinal recovery, shorter time to tolerating diet, shorter hospital length of stay (3.0 vs. 4.0 days, p < 0.0001), and longer operative times (207.5 min vs. 173.1 min, p < 0.0001). There were no significant differences between groups in postoperative complications and short-term oncologic outcomes.

conclusionIntracorporeal anastomosis during minimally invasive right colectomy is associated with a lower rate of incisional hernias and other benefits compared to the extracorporeal approach. These data support continued training in and implementation of intracorporeal anastomotic techniques.

trial registrationClinicaltrials.gov identifier: NCT03312569.

Indexed as

ColectomyIncisional HerniaLaparoscopyRobotic Surgical ProceduresAgedAnastomosis, SurgicalFemaleHumansLength of StayMaleMiddle AgedProspective StudiesTreatment OutcomeExtracorporeal anastomosisIntracorporeal anastomosisLaparoscopic right colectomyMinimally invasive colorectal surgeryRobotic-assisted right colectomy

Identifiers

PMID41145697
PMCPMC12823757

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.