2024 Volume 37 Issue 1 Pages 125-130
Objectives : The hinotori surgical robot system (hinotoriTM) is the first made-in-Japan robotic system, which initially used in urological surgeries. We evaluated the safety and efficacy of robot-assisted radical prostatectomy (RARP) using hinotoriTM.
Methods : From November 2021 through October 2022, 82 patients underwent RARP for clinically localized prostate cancer. We used a transperitoneal approach with six ports technique, just as da Vinci surgical system. Lymphadenectomy was not performed for any patients. We retrospectively collected the baseline characteristics, the perioperative data and postoperative complications of the population studied.
Results: Median patient age and serum prostate-specific antigen level were 70 years and 7.5 ng/mL, respectively. The procedures by hinotoriTM were successfully completed in all 82 cases, whereas robot recoverable malfunctions were observed in 2 cases. Median cockpit and total operative times were 164 and 249 min, respectively. Median estimated blood loss was 20 mL. The total perioperative complication rates were 13％, with about half of complications being anastomosis leakage. The specific complications by Clavien-Dindo grade 3 were inguinal hernia in 2 cases and intraoperative small bowel injury in one case. Positive surgical margin rates for pT2 and T3 were 27 and 48％, respectively. Continence recovery rates at 1, 3, 6 months postoperatively were 48, 78, 86％, respectively.
Conclusions: Our results suggest that RARP by hinotoriTM is safe, feasible, and effective. Robot-assisted surgery skills using da Vinci surgical robot system might be transferrable to surgery by hinotoriTM, even during the very initial experience.
