Early outcomes of three new robotic surgical systems in patients undergoing hysterectomy.

New robot models, such as hinotori, da Vinci SP, and Hugo, have been introduced in Japan. This study examined the surgical outcomes of these models in patients from the initial stages of their introduction to the present day.We retrospectively reviewed 36 patients with endometrial cancer or benign gynecologic disease, who underwent robotic hysterectomy using da Vinci SP, hinotori, or Hugo between March 2023 and March 2024.Robotic hysterectomy was performed using hinotori™ in 10 patients, da Vinci SP in 16 patients, and Hugo in 10 patients. No significant differences were observed in the characteristics of the patients subjected to surgery using these models. The total operative time was 123.0 min (93-144 min) for hinotori, 95.0 min (79-165 min) for da Vinci SP, and 98.5 min (74-177 min) for Hugo. The total operative time of hinotori™ was significantly longer than that of the other two models (p = 0.031). No differences were observed among the robot systems with respect to complications during or after surgery and the intensity of postoperative pain.Differences in the surgical time were noted depending on the model used. It has been proven that surgeons who are already proficient in performing robotic surgery with da Vinci Xi can safely perform surgeries with the new models.