Journal of Gastrointestinal Surgery

, Volume 21, Issue 11, pp 1931–1945 | Cite as

Short-Term Outcomes of Single-Incision Versus Conventional Laparoscopic Surgery for Colorectal Diseases: Meta-Analysis of Randomized and Prospective Evidence

  • Hui-Juan Li
  • Lei HuangEmail author
  • Tuan-Jie Li
  • Jing Su
  • Ling-Rong Peng
  • Wei LiuEmail author
Review Article



Conventional laparoscopic surgery (CLS) has been established as an alternative to open surgery for colorectal diseases (CRDs); simultaneously, single-incision laparoscopic surgery (SILS) is gaining popularity.


The aim of this study was to compare the short-term efficacy and safety of SILS with CLS for CRDs.


MEDLINE, EMBASE, and the Cochrane Library were searched for relevant randomized and prospective studies. Reference lists of relevant articles and reviews, conference proceedings, and ongoing trial databases were also screened. Outcome measures included surgical parameters, postsurgical recovery, pain, and adverse events. Meta-analysis was conducted where appropriate, comparing items using weighted mean differences (WMDs) and risk ratios (RRs) according to data type.


A total of nine prospective (three randomized and six non-randomized) researches published from 2011 to 2015 were identified. The overall pooled results showed compared to CLS, SILS was associated with fewer blood transfusions, shorter incision length, and slighter postoperative pain, but more extra ports. All the other parameters were comparable. Randomized evidence supported SILS was associated with less blood loss, and shorter hospital stay, but longer operative time. For only colectomy cases, SILS was associated with more conversions to open surgery. SILS was associated with longer surgical time for Easterners, but not for Westerners. The detected differences were clinically insignificant.


The results based on randomized and prospective evidence provide convincing support for the clinical similarity that SILS is basically as applicable, effective, and safe as CLS when dealing with colorectal lesions, but not for superiority.


Single-incision laparoscopic surgery Conventional laparoscopic surgery Colorectal disease Efficacy Safety 



Conventional laparoscopic surgery


Numeric rating scale


Randomized controlled trial


Risk ratio


Single-incision laparoscopic surgery


Weighted mean difference



The authors would most sincerely thank the reviewers and editors for critically reviewing this paper and for the constructive and thoughtful comments and suggestions, and the College of Public Hygiene of Sun Yat-sen University for the statistical assistance. This work was supported by the Natural Science Foundation of Guangdong Province (No. 2014A030313131 and No. 2015A030312013), Key Scientific and Technological Projects of Guangdong Province (No. 2014B020228003 and No. 2014B030301041), and Science and Technology Planning Project of Guangzhou (No. 201400000001-3 and No. 158100076). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Conflicts of Interest

The authors declare that they have no conflicts of interest.

Author Contributions

Conception and design: L.H.J., H.L., L.T.J., S.J., and L.W.; analysis and interpretation of the data: L.H.J., H.L., L.T.J., S.J., and P.L.R.; drafting of the article: L.H.J., H.L., L.T.J., S.J., and L.W.; critical revision of the article for important intellectual content: H.L., P.L.R., and L.W.; final approval of the article: all authors.

Supplementary material

11605_2017_3520_Fig5_ESM.gif (37 kb)
Fig. S1

Funnel plots for (A) specimen length, (B) margin-free resection, (C) distal margin length, (D) conversion to open surgery, (E) extra port, (F) day to flatus, (G) reoperation, (H) postoperative mortality, (I) overall complication, (J) wound infection, (K) ileus, and (L) anastomotic leakage.(GIF 36 kb)

11605_2017_3520_MOESM1_ESM.tif (800 kb)
High resolution image (TIFF 800 kb)
11605_2017_3520_MOESM2_ESM.docx (15 kb)
Table S1 (DOCX 15 kb)


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Copyright information

© The Society for Surgery of the Alimentary Tract 2017

Authors and Affiliations

  1. 1.Department of NursingThe Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina
  2. 2.Department of General SurgeryThe First Affiliated Hospital of Anhui Medical UniversityHefeiChina
  3. 3.Department of General SurgeryNanfang Hospital of Southern Medical UniversityGuangzhouChina
  4. 4.Department of Geriatric MedicineAnhui Provincial Hospital of Anhui Medical UniversityHefeiChina
  5. 5.Department of RadiologyThe Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina
  6. 6.Guangdong Key Laboratory of Liver Disease ResearchThe Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina

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