• Jensen T C Poon, Chi-Wai Cheung, Joe K M Fan, Oswen S H Lo, and Wai-Lun Law.
• Division of Colorectal Surgery, Department of Surgery, Queen Mary Hospital, The University of Hong Kong, 102 Pok Fu Lam Road, Hong Kong, Hong Kong.
• Surg Endosc. 2012 Oct 1;26(10):2729-34.

BackgroundSingle-incision laparoscopic colectomy (SILC) is a newly developed procedure with the benefit of better cosmetic outcome and potentially reduced wound pain compared with conventionally laparoscopic colectomy (CLC). However, the application of SILC requires careful evaluation to prove its benefit and safety. This randomized, controlled study compared the operative outcome of patients who underwent SILC and CLC.MethodsPatients who had small cancer (<4 cm) or adenomatous polyp requiring colectomy were randomized to have SILC or CLC. The patients were blinded to the procedures and the postoperative pain was used as the primary outcome measure. All patients had patient-controlled analgesia with intravenous morphine after the operation and the nominal rating score on days 1-3 and day 14 were recorded by research staff, who did not known the types of operations. Other operative outcomes of the two groups of patients also were recorded prospectively and compared.ResultsThere were 25 patients in each group. The patients' demographics, tumor characteristics, operating time, blood loss, complication rate, number of lymph nodes harvested, and resection margin have no statistically significant difference between the two groups. There was no operative mortality in both groups. The SILC group had consistently lower median pain score than CLC group in the whole postoperative course and the difference was statistically significant on day 1 (0 (0-5) vs. day 3 (0-6) respectively; p = 0.002) and day 2 (0 (0-3) vs. 2 (0-8) respectively; p = 0.014). The median hospital stay in the SILC group also was shorter the CLC group.ConclusionsIn a selected group of patients with small tumor and good operative risk, SILC is a safe alternative to CLC. Single-port laparoscopic colectomy also is associated with the benefits of less postoperative pain and shorter hospital stay than CLC.

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