Trial reportAnnals of surgery2019
Bowel Obstruction and Ventral Hernia After Laparoscopic Versus Open Surgery for Rectal Cancer in A Randomized Trial (COLOR II).
Trial report in Annals of surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled 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.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
29 citing papers in PubMed, 3 syntheses or guidelines pooled it, 100 citations in OpenAlex.
- Incisional hernia incidence following laparoscopic versus open abdominal surgery: an updated systematic review and meta-analysis of randomized controlled trials.Hernia : the journal of hernias and abdominal wall surgery · 2025Pooled it
- Updated guideline for closure of abdominal wall incisions from the European and American Hernia Societies.The British journal of surgery · 2022Pooled it
- An evidence map and synthesis review with meta-analysis on the risk of incisional hernia in colorectal surgery with standard closure.Hernia : the journal of hernias and abdominal wall surgery · 2022Pooled it
- Trial
- Incidence of parastomal hernia after open versus minimally invasive surgery: a comparative systematic review.Surgical endoscopy · 2026Article
- Barbed Sutures Are Associated With a Lower Incidence of Incisional Hernia Compared With Continuous Non-Barbed Monofilament Sutures After Minimally Invasive Gastroenterological Surgery.Annals of gastroenterological surgery · 2026Article
- Laparoscopic Surgery Is Associated With Reduced Small Bowel Obstruction Risk After Colorectal Cancer Surgery: A Nationwide Cohort Study of 5458 Patients.Annals of gastroenterological surgery · 2026Article
- The choice of extraction site modulates the incidence of incisional hernia in colorectal surgery: a cohort analysis.Updates in surgery · 2026Observational
- Article
- Colorectal and emergency surgical patients in the literature supporting EHS and AHS guidelines on abdominal wound closure: a granular analysis.Hernia : the journal of hernias and abdominal wall surgery · 2025Article
- Hand-Assisted Laparoscopic Rectal Resection-Experience of a Tertiary Oncology Center.Journal of clinical medicine · 2025Article
- Occurrence and prevention of incisional hernia following laparoscopic colorectal surgery.World journal of gastrointestinal surgery · 2024Article
- Retrospective study of an incisional hernia after laparoscopic colectomy for colorectal cancer.BMC surgery · 2023Article
- Risk factors for small-bowel obstruction after colectomy for colorectal cancer: a retrospective study.Surgery today · 2023Article
- Outcomes of open vs laparoscopic vs robotic vs transanal total mesorectal excision (TME) for rectal cancer: a network meta-analysis.Techniques in coloproctology · 2023Review
- Clinical impact of laparoscopic surgery and adhesion prevention material for prevention of small bowel obstruction.Annals of gastroenterological surgery · 2022Article
- Multimodal Treatment of Rectal Cancer.Deutsches Arzteblatt international · 2022Review
- Periumbilical Transverse Incision for Reducing Incisional Hernia in Laparoscopic Colon Cancer Surgery.World journal of surgery · 2022Article
- Retrospective analysis of risk factors for postoperative perineal hernia after endoscopic abdominoperineal excision for rectal cancer.BMC surgery · 2022Article
- Neoadjuvant chemotherapy and radiotherapy followed by resection/ablation in stage IV rectal cancer patients with potentially resectable metastases.BMC cancer · 2021Article
Corrections and comments
- Commented on by
Authors and funding
13 authors at 6 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe aim of this study was to evaluate the risk of bowel obstruction, incisional, and parastomal hernia following laparoscopic versus open surgery for rectal cancer. SUMMARY BACKGROUND DATA: Laparoscopic surgery for rectal cancer has been adopted worldwide, after trials reported similar oncological outcomes compared with open surgery. Little is known about long-term morbidity, including bowel obstruction, incisional, and parastomal hernia following surgery.
methodsPatients included in the international, multicenter, noninferior, open-label, randomized COLOR II trial were followed for five years. Primary endpoint was local recurrence at 3-year follow-up. Secondary endpoints included bowel obstruction, incisional and parastomal hernia within 5 years, and the current article reports on these secondary endpoints.
resultsAll 1044 patients included in the COLOR II trial were analyzed. There was no difference in risk of bowel obstruction, incisional, or parastomal hernia following laparoscopic or open surgery for rectal cancer.
conclusionBased on long-term morbidity outcomes, laparoscopic surgery for rectal cancer could be considered a routine technique as there are no differences with open surgery.
Indexed as
Identifiers
What OpenQuestion holds
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.