Colorectal endometriosis is a challenging form of deep infiltrating endometriosis (DIE), characterized by the presence of endometrial-like tissue involving the rectum, sigmoid colon, or surrounding pelvic structures. Patients frequently experience chronic pelvic pain, dysmenorrhea, dyschezia, painful defecation, dyspareunia, and infertility.
Surgical management is particularly challenging because of distorted pelvic anatomy, dense adhesions, fibrosis, and the proximity of vital structures, including the ureters, pelvic autonomic nerves, and major blood vessels.
Conventional laparoscopy has long been an established minimally invasive approach. However, robotic-assisted surgery has emerged as an alternative, offering enhanced three-dimensional visualization, articulating instruments, tremor filtration, and improved surgical ergonomics.
A recent systematic review and meta-analysis published in Cureus examined whether these technological advantages translate into measurable improvements in clinical outcomes for patients undergoing surgery for colorectal endometriosis. Endo Lab
Study Objectives and Methodology
The study, entitled “Robotic Versus Laparoscopic Surgery for Colorectal Endometriosis: A Systematic Review and Meta-Analysis of Comparative Observational Cohorts,” was conducted by Zoya Shaikh and Mohammed Razeen Shaikh.
The investigators systematically evaluated comparative observational studies published between January 2020 and August 2026.
Following PRISMA 2020 guidelines, the authors searched multiple scientific databases, including PubMed, Embase, Scopus, Web of Science, CINAHL, and African Journals Online.
Eight comparative observational reports fulfilled the eligibility criteria.
The analysis focused specifically on colorectal and rectosigmoid endometriosis, excluding studies of other forms of endometriosis unless colorectal outcomes were separately identifiable.
The principal outcomes included operative duration, estimated blood loss, postoperative complications, conversion to open surgery, hospital stay, and selected functional outcomes. Endo Lab
Major Findings
1. Operative Time
Robotic-assisted surgery generally required longer operative time compared with conventional laparoscopy.
This difference may partly reflect robotic docking, instrument positioning, and the additional complexity of procedures selected for robotic intervention.
However, the magnitude and statistical significance of the difference varied across individual studies.
2. Intraoperative Blood Loss
Both approaches demonstrated broadly comparable estimated blood loss.
Although robotic surgery offers enhanced visualization and precise instrument control, the available evidence did not establish a consistent reduction in blood loss compared with conventional laparoscopy.
3. Postoperative Complications
Overall postoperative complication rates were broadly similar between robotic and laparoscopic procedures.
No consistent advantage was demonstrated for either approach regarding perioperative safety.
4. Conversion to Open Surgery
The review found generally comparable conversion rates between the two techniques.
Both approaches appear feasible when performed by appropriately trained surgeons in experienced surgical centres.
5. Duration of Hospitalization
The findings regarding postoperative hospital stay were inconsistent.
Some studies suggested potential advantages for robotic surgery, whereas others reported comparable or longer hospitalization.
Consequently, the evidence does not establish a consistent advantage for either technique regarding length of stay.
6. Functional Outcomes and Recurrence
Selected studies examined postoperative voiding dysfunction, reoperation, recurrence, and opioid requirements.
Although potentially important differences were reported in individual cohorts, the evidence was insufficient to determine whether either surgical approach provides superior long-term functional outcomes. Endo Lab
Advantages of Robotic Surgery in Complex Colorectal Endometriosis
Robotic surgery may offer particular technical advantages in complex pelvic dissection.
Its wristed instruments provide additional degrees of freedom, facilitating precise dissection, suturing, and intracorporeal manipulation within confined anatomical spaces.
Three-dimensional visualization may assist with identifying tissue planes, preserving pelvic autonomic nerves, and performing technically demanding procedures near the rectum and ureters.
These features may be especially useful when endometriosis involves multiple pelvic compartments or requires bowel resection and reconstruction.
Nevertheless, technical advantages should not automatically be interpreted as proven improvements in patient outcomes.
A separate 2026 observational study involving 160 patients reported comparable perioperative outcomes between robotic and laparoscopic surgery, despite robotic procedures being performed in anatomically more complex cases. This reinforces the importance of considering disease severity when comparing surgical techniques. PubMed Central (PMC)
Limitations of Current Evidence
The Cureus review identified several important limitations.
All eight included reports were observational rather than randomized controlled trials. Consequently, differences in patient selection, surgeon experience, disease complexity, and institutional protocols could influence the findings.
Other limitations included variations in surgical procedures, definitions of postoperative complications, follow-up duration, and potential overlap between patient cohorts.
These factors limit the ability to establish a causal relationship between surgical platform and patient outcomes.
Clinical Implications
The findings suggest that both robotic-assisted surgery and conventional laparoscopy are reasonable minimally invasive approaches for colorectal endometriosis.
The decision should consider disease extent, previous surgery, anticipated bowel involvement, surgeon expertise, availability of multidisciplinary support, and institutional resources.
For extensive colorectal endometriosis, collaboration between gynecological endoscopic surgeons and colorectal surgeons remains particularly important.
Appropriate surgical planning should emphasize complete and safe disease treatment while minimizing the risks of bowel, urinary, neurological, and reproductive complications.
Conclusion
The systematic review indicates that robotic-assisted surgery is a feasible alternative to conventional laparoscopy for colorectal endometriosis, but current evidence does not demonstrate consistent perioperative superiority of either technique.
Robotic surgery generally requires longer operative time, while estimated blood loss, overall complications, and conversion rates appear broadly comparable.
Its enhanced dexterity and visualization may provide technical advantages in complex pelvic surgery, but further high-quality evidence is needed to determine whether these advantages result in better long-term clinical outcomes.
Future multicentre prospective studies should evaluate postoperative bowel and bladder function, pain relief, fertility outcomes, recurrence, quality of life, and cost-effectiveness.
Ultimately, successful surgical management depends not only on the technology employed but also on accurate preoperative assessment, surgical expertise, careful patient selection, and meticulous preservation of pelvic anatomy.
Original Research Reference
Shaikh Z, Shaikh MR. Robotic Versus Laparoscopic Surgery for Colorectal Endometriosis: A Systematic Review and Meta-Analysis of Comparative Observational Cohorts. Cureus. 2026.
Keywords: Robotic Surgery, Laparoscopic Surgery, Colorectal Endometriosis, Deep Infiltrating Endometriosis, Minimally Invasive Surgery
Editorial note: This summary is based on the accessible indexed abstract of the specified Cureus publication, supported by related peer-reviewed literature. The complete article text was not accessible through the publisher page, so study-specific numerical effect estimates have not been reproduced.