Annals of Surgical Oncology

, Volume 22, Issue 3, pp 924–930 | Cite as

Oncologic Outcomes of Single-Incision versus Conventional Laparoscopic Anterior Resection for Sigmoid Colon Cancer: A Propensity-Score Matching Analysis

  • Chang Woo Kim
  • Min Soo Cho
  • Se Jin Baek
  • Hyuk Hur
  • Byung Soh Min
  • Jeonghyun Kang
  • Seung Hyuk Baik
  • Kang Young Lee
  • Nam Kyu Kim
Colorectal Cancer



The aim of this study was to investigate oncologic outcomes, as well as perioperative and pathologic outcomes, of single-incision laparoscopic anterior resection (SILAR) compared with conventional laparoscopic anterior resection (CLAR) for sigmoid colon cancer using propensity-score matching analysis.


From July 2009 through April 2012, a total of 407 patients underwent laparoscopic anterior resection for sigmoid colon cancer. Data on short- and long-term outcomes were collected prospectively and reviewed. Propensity-score matching was applied at a ratio of 1:2 comparing the SILAR (n = 60) and CLAR (n = 120) groups.


There was no difference in operation time, estimated blood loss, time to soft diet, and length of hospital stay; however, the SILAR group showed less pain on postoperative day 2 (mean 2.6 vs. 3.6; p = 0.000) and shorter length of incision (3.3 vs. 7.7 cm; p = 0.000) compared with the CLAR group. Morbidity, mortality, and pathologic outcomes were similar in both groups. The 3-year overall survival rates were 94.5 versus 97.1 % (p = 0.223), and disease-free survival rates were 89.5 versus 87.4 % (p = 0.751) in the SILAR and CLAR groups, respectively.


The long-term oncologic outcomes, as well as short-term outcomes, of SILAR are comparable with those of CLAR. Although SILAR might have some technical difficulties, it appears to be a safe and feasible option, with better cosmetic results.


Oncologic Outcome Harvest Lymph Node Incision Length SILAR Group Distal Resection Margin 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Chang Woo Kim, Min Soo Cho, Se Jin Baek, Hyuk Hur, Byung Soh Min, Jeonghyun Kang, Seung Hyuk Baik, Kang Young Lee, Nam Kyu Kim have no conflicts of interests or financial ties to disclose.


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Copyright information

© Society of Surgical Oncology 2014

Authors and Affiliations

  • Chang Woo Kim
    • 1
  • Min Soo Cho
    • 1
  • Se Jin Baek
    • 1
  • Hyuk Hur
    • 1
  • Byung Soh Min
    • 1
  • Jeonghyun Kang
    • 1
  • Seung Hyuk Baik
    • 1
  • Kang Young Lee
    • 1
  • Nam Kyu Kim
    • 1
  1. 1.Division of Colon and Rectal Surgery, Department of Surgery, Severance HospitalYonsei University College of MedicineSeoulKorea

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