Comparison of single-port and multi-port Retzius-sparing robot-assisted laparoscopic prostatectomy

Alexander L. Shiang, Joshua K. Palka, Shiva Balasubramanian, R. Sherburne Figenshau, Zachary L. Smith, Eric H. Kim

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Dissemination of robotic surgical technology for robot-assisted laparoscopic prostatectomy (RALP) has yielded advancements including the Retzius-sparing (RS) approach and the single-port (SP) platform. The safety and feasibility of each individual advancement have been evaluated, yet there is a lack of literature comparing SP RS-RALP to conventional multi-port (MP) RS-RALP. All patients who underwent RS-RALP at our institution between January 2019 and February 2021 were retrospectively reviewed. Data regarding baseline patient and tumor characteristics, operative characteristics, and surgical outcomes were collected and analyzed using the Fisher’s exact test and two-tailed unpaired t tests. 62 patients were evaluated: 31 received SP RS-RALP and 31 received MP RS-RALP. Differences in patient age, BMI, and initial PSA were not observed. Lower median lymph node yield (SP: 4 vs MP: 12, p < 0.01), lower estimated blood loss (SP: 111.2 vs. MP 157.8 mL, p < 0.01), shorter operative time (SP: 207.7 vs. MP: 255.9 min, p < 0.01) and decreased length of stay (SP: 0.39 vs. MP: 1.23 days, p < 0.01) were observed in the SP RS-RALP cohort. No differences in positive surgical margins, complications, or biochemical recurrence rates were observed. SP RS-RALP is non-inferior to MP RS-RALP in terms of both perioperative and early oncologic outcomes. Despite the small sample size, the SP platform is a safe and feasible option for RS-RALP and confers potential benefits in the form of shorter operative time and reduced length of stay.

Original languageEnglish
Pages (from-to)835-840
Number of pages6
JournalJournal of Robotic Surgery
Issue number3
StatePublished - Jun 2023


  • Multiport
  • Outcomes
  • Prostate cancer
  • Retzius-sparing
  • Single-port


Dive into the research topics of 'Comparison of single-port and multi-port Retzius-sparing robot-assisted laparoscopic prostatectomy'. Together they form a unique fingerprint.

Cite this