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Robot-assisted laparoscopy has been developed to overcome some of the important limitations of conventional laparoscopy. In particular, the provision of stable magnified three-dimensional vision, tremor filtering, motion scaling, and articulated instruments with robot-assisted surgery has the potential to enable more surgeons to perform more complex surgery compared with conventional laparoscopy. The aim of this study was to evaluate the utility of a new robot-assisted surgical system (Versius, CMR Surgical, Cambridge, UK) for gynecologic procedures in a preclinical setting. Cadaveric sessions were conducted to evaluate the ability of the system to complete all surgical steps required for a robot-assisted total laparoscopy hysterectomy. A live animal (porcine) model was used to assess the system in performing oviduct removal as a surrogate for robot-assisted total laparoscopy hysterectomy. Procedures were performed by experienced gynecologic surgeons, supported by a surgical team. The precise surgical steps conducted to conclude that the procedures could be fully completed were systematically recorded, as well as instruments used and endoscope angle. In total, six gynecologic procedures were performed in cadavers by four surgeons; 16/17 procedures were completed successfully. Positioning of the ports and bedside units reflected the surgeons’ preferred laparoscopic setup and enabled good surgical access and reach, as exemplified by the high procedure completion rate. Oviduct removal procedures performed in pigs were all completed successfully by a single surgeon. This preclinical study of a new robot-assisted surgical system for gynecologic procedures demonstrated the safety and effectiveness of the system in cadaver and porcine models. Further studies are required to assess its clinical utility.

Preclinical evaluation of a new robot-assisted surgical system for use in gynecology minimal access surgery