Pelvic peritoneum closure reduces risk of severe postoperative complications in rectal cancer patientsPelvic Peritoneum Closure May Reduce Severe Rectal Cancer Complications

Journal of laparoendoscopic & advanced surgical techniques. Part A Published August 2, 2026 Study authors: Patriti Alberto, Rondelli Fabio, Salvador Clara, Montalti Roberto PubMed ↗ DOI ↗ Editorial oversight: Dr. Amelia Tan, PhD · Internal Medicine & Chronic Disease

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Key Takeaway

Note that pelvic peritoneum closure reduces severe complications but increases operative time in rectal cancer surgery.

This meta-analysis evaluated the impact of pelvic peritoneum closure (PC) compared to no closure (NC) in 2753 patients undergoing minimally invasive low anterior resections for rectal cancer. The primary finding indicates that PC is associated with a significantly lower risk of severe postoperative complications, graded as Clavien-Dindo III-IV (OR 0.34; 95% CI 0.20-0.55). However, the analysis found no significant difference between groups regarding overall postoperative complications or perioperative mortality.

Secondary outcomes showed that PC was associated with a mean increase of 11.1 minutes in operative time. While there were no reported increases in infectious or medical complications, and length of stay remained comparable between groups, data suggested improved postoperative bowel function following PC.

The authors note limitations including the fact that findings are derived predominantly from observational studies and there is a limited number of studies reporting functional outcomes. Because the evidence relies on observational data, the results indicate an association rather than a confirmed causal link. Clinical adoption should be approached with caution until further randomized controlled trials are available.

A review of data from 2,753 patients undergoing minimally invasive surgery for rectal cancer looked at the impact of closing the pelvic peritoneum (PC). The study compared this technique to not closing it (NC) to see how it affected patient safety and recovery.

The results showed that patients who had their pelvic peritoneum closed had a lower risk of severe postoperative complications. While there was no difference in overall complication rates, mortality, or length of stay between the two groups, those with closure showed signs of better bowel function after surgery. However, the procedure did take about 11 minutes longer to perform.

It is important to note that these findings come mostly from observational studies rather than controlled trials. Because of this, the results show a link but do not prove that one method causes better outcomes. More clinical trials are needed before this change can be adopted as a standard practice for all patients.

What this means for you:

Pelvic peritoneum closure is linked to fewer severe complications in rectal cancer surgery, though more research is needed.

Common questions

Does closing the pelvic peritoneum make surgery safer?

The study found that patients who had their pelvic peritoneum closed had a lower risk of severe postoperative complications (Clavien-Dindo grades III-IV). However, because much of this data comes from observational studies rather than randomized trials, doctors should use these results as an indicator rather than a guarantee of safety.

How does this procedure affect recovery time?

The study found that the length of stay in the hospital was comparable between patients who had the pelvic peritoneum closed and those who did not. While the surgery took about 11 minutes longer when the peritoneum was closed, it did not significantly change the overall duration of the hospital stay.

Does this technique improve bowel function?

The data suggested that patients who had their pelvic peritoneum closed showed improved postoperative bowel function. However, because there were a limited number of studies reporting on these specific functional outcomes, more research is needed to confirm how much this helps patients.

Study Details

Study typeMeta analysis

Sample sizen = 2,753

EvidenceLevel 1

PublishedAug 2026

PMID42011690

View Original Abstract ↓

BACKGROUND: Anastomotic leakage (AL) after low anterior resection (LAR) remains a major determinant of postoperative morbidity, largely driven by the severity of its downstream consequences. Pelvic peritoneum closure (PC) has been proposed as an anatomy-based maneuver to restore pelvic compartmentalization after LAR, but its clinical impact has not been systematically quantified. METHODS: A systematic review and meta-analysis were conducted according to a prespecified PROSPERO protocol and the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) 2020 guidelines. PubMed (MEDLINE), Embase, and Scopus were searched from inception to April 2026. Comparative studies evaluating PC versus no closure (NC) after minimally invasive LAR for rectal cancer were included. The primary outcome was severe postoperative complications (Clavien-Dindo grades III-IV). Secondary outcomes included overall postoperative complications, AL, infectious and medical complications, operative time, length of stay, reoperation, mortality, and functional outcomes when available. Risk of bias was assessed using Risk Of Bias In Non-randomized Studies of Interventions (ROBINS-I). RESULTS: Seven observational studies encompassing 2753 patients (PC: 1,096; NC: 1,657) were included. PC was associated with a lower risk of severe postoperative complications (odds ratios [OR] 0.34, 95% confidence intervals [CI] 0.20-0.55), with no heterogeneity. Overall postoperative complications did not differ between groups (OR: 0.86, 95% CI: 0.67-1.11). No increase in infectious or medical complications was observed. Operative time was significantly longer with PC (mean difference 11.1 minutes), with substantial heterogeneity. Length of stay and perioperative mortality were comparable between groups. Functional outcomes were reported in a limited number of studies and suggested improved postoperative bowel function after PC. CONCLUSIONS: PC following minimally invasive LAR is associated with a reduction in severe postoperative complications and clinically relevant AL. However, these findings are derived predominantly from observational studies and should be interpreted with caution. Further adequately powered randomized controlled trials are required before routine clinical adoption can be recommended.

Pelvic peritoneum closure reduces risk of severe postoperative complications in rectal cancer patientsPelvic Peritoneum Closure May Reduce Severe Rectal Cancer Complications

Common questions

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Pelvic peritoneum closure reduces risk of severe postoperative complications in rectal cancer patientsPelvic Peritoneum Closure May Reduce Severe Rectal Cancer Complications

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