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. 2024 Mar 18;18(1):130.
doi: 10.1007/s11701-024-01877-y.

hinotoriTM vs. da Vinci®: propensity score-matched analysis of surgical outcomes of robot-assisted radical prostatectomy

Yasuo Kohjimoto  1 , Shimpei Yamashita  2 , Sohei Iwagami  1 , Satoshi Muraoka  1 , Takahito Wakamiya  1 , Isao Hara  1
Affiliations

hinotoriTM vs. da Vinci®: propensity score-matched analysis of surgical outcomes of robot-assisted radical prostatectomy

Yasuo Kohjimoto et al. J Robot Surg. .

Abstract

hinotori™ is a recently developed surgical robot system. The present study aims to compare intraoperative and postoperative outcomes of robot-assisted radical prostatectomy (RARP) by the hinotori™ system compared with those of the longer-established da Vinci® system. This study includes 100 consecutive patients who underwent RARP by da Vinci® and 60 patients who underwent RARP by hinotori™. To minimize imbalances of patient demographics between the two groups, 1:1 propensity score-matching was performed, and 43 patients each were assigned to the da Vinci® and hinotori™ groups after matching. In the propensity score-matched cohort, we could not find significant differences in patient demographics between the two groups. Surgical outcomes, operative time, and console time in the hinotori™ group were significantly longer than those in the da Vinci® group. Meanwhile, we could not find significant differences in other outcomes between the two groups, such as estimated blood loss, intraoperative complications, major postoperative complications (Clavien-Dindo grade 3 or 4) or length of hospital stay after surgery. The rate of positive cancer margin in the hinotori™ group was higher than that in the da Vinci® group, but significant difference could not be found between the two groups. Moreover, we could not find significant differences in urinary continence rates after surgery between the da Vinci® and hinotori™ groups. Our results suggest that the hinotori™ surgical robot system could provide comparable surgical outcomes to that of the da Vinci® system for patients undergoing RARP.

Keywords: Propensity score-matching; Robot-assisted radical prostatectomy; Surgical outcomes; da Vinci; hinotori.

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