Long-term Oncologic Outcomes of Single-Incision Plus One-Port Laparoscopic Surgery for Rectal Cancer

Single-incision plus one-port laparoscopic surgery (SILS+1) for rectal cancer reduces technical difficulties of pure single-incision laparoscopic surgery (SILS) keeping good cosmetic results. However, the adequate long-term oncological outcomes of SILS+1 for rectal cancer were not documented in the literature. Data from 136 patients (86 males) who performed an elective surgery with SILS+1 for stage I to III rectal cancer were reviewed, and its 5-year oncologic outcomes were evaluated. The median follow-up period was 57 months. A total of 18 patients (13.3%) experienced recurrence, including two peritoneum and three local recurrences. In these five patients, four patients except one patient with relapse at an anastomotic site were pT4 patients. The 5-year overall survival for stage I, II, and III patients were 98.1, 91.2, and 88.5%, respectively, and the 5-year cancer-specific survival for stage I, II, and III patients was 100, 97.1, and 97.8%, respectively. The long-term oncological safety of SILS+1 for rectal cancer was demonstrated with an excellent 5-year cancer-specific survival.