Robotic versus laparoscopic sphincter-preserving total mesorectal excision: A propensity case-matched analysis

Int J Med Robot. 2019 Feb;15(1):e1965. doi: 10.1002/rcs.1965. Epub 2018 Oct 29.

Abstract

Background: Robotic total mesorectal excision (R-TME) is expected to have advantages over laparoscopic total mesorectal excision (L-TME). The aim is to compare the short-term outcomes between initial cases of L-TME and RTME.

Materials and methods: Among a total of 168 patients assigned to receive either R-TME (n = 84) or L-TME (n = 84), short term outcomes were compared between the groups by 1:1 propensity score matching of eight variables.

Results: The inter-sphincteric resection rate (42.9% vs. 25%; P = 0.006) and operative time (372.4 ± 102.8 vs. 301 ± 53.6, P = 0.000) were significantly greater in R-TME. The conversion rate, blood loss, and length of hospital stay were similar. The anastomotic leak rate and major surgical complications rates were significantly higher in L-TME (9.5% vs. 1.2%; P = 0.016) and (13.1% vs. 4.8%; P = 0.034) respectively.

Conclusion: The oncologic quality and short-term outcomes in the two groups were comparable; however, anastomotic leak rates and major complications were significantly lower in R-TME. For experienced laparoscopic surgeons, robotic sphincter-saving TME is associated with lower morbidity when compared with laparoscopic approach.

Keywords: intersphincteric resection; laparoscopic total mesorectal excision; rectal cancer; robotic total mesorectal excision; sphincter preservation.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Anastomosis, Surgical*
  • Body Mass Index
  • Female
  • Humans
  • Laparoscopy / methods*
  • Male
  • Middle Aged
  • Neoadjuvant Therapy
  • Operative Time
  • Outcome Assessment, Health Care
  • Postoperative Complications
  • Propensity Score
  • Prospective Studies
  • Rectal Neoplasms / surgery*
  • Rectum / surgery
  • Robotic Surgical Procedures / methods*