Comparative Analysis of Surgical Outcomes between the hinotori™ Surgical Robot System and da Vinci® Xi in Robot-assisted Sacrocolpopexy for Pelvic Organ Prolapse.

Abstract

Objectives: Numerous studies have compared robotic sacrocolpopexy (RSC) and laparoscopic sacrocolpopexy; however, comparisons of RSC with the hinotori™ surgical robot system (SRS) are limited. This study aimed to compare surgical factors and outcomes of RSC using the hinotori™ SRS and da Vinci® Xi for pelvic organ prolapse.

Materials and methods: A retrospective analysis was conducted on 80 patients who underwent RSC at Kagoshima University Hospital between January 2017 and June 2024. Patients were divided into two groups based on the robotic system used: hinotori™ SRS (n = 22) and da Vinci® Xi (n = 58). Surgical factors, including operative time, cockpit/console time, blood loss, length of hospital stay, and complications, were evaluated.

Results: The median operative time and cockpit/console times for the hinotori™ SRS were 286 (range: 185-612) min and 250 (123-440) min, respectively, and those for the da Vinci® Xi were 221 (150-430) min and 194 (93-337) min, respectively; values for the hinotori™ SRS were significantly higher. No significant differences were found in blood loss, length of hospital stay, or complications between the two groups. The longer operative times for the hinotori™ SRS were likely due to the learning curve associated with fewer cases.

Conclusion: Despite longer operative times, the hinotori™ SRS demonstrates surgical outcomes comparable to those of the da Vinci® Xi, indicating that RSC can be performed safely and effectively using the hinotori™ SRS. Future studies with larger sample sizes are needed to validate these findings.