Comparison of the FreeHand® robotic camera holder with human assistants during endoscopic extraperitoneal radical prostatectomy

Abstract

• To assess, in a prospective randomized study, the efficiency of the FreeHand® (Prosurgics Ltd, Bracknell, UK) compared to manual camera control during the performance of endoscopic extraperitoneal radical prostatectomy (EERPE). • Three surgeons performed 50 EERPE for localized prostate cancer. In group A (n= 25), procedures were performed with manual control of the camera by the assistant, whereas group B (n= 25) patients were treated with the assistance of the FreeHand® robotic device. • The EERPE procedure was divided into several steps. • Total operation duration, time for each surgical step, number of camera movements, number of movement errors, number of times the lens was cleaned, blood loss and margin status were compared. • No statistically significant difference was observed in terms of patient age, preoperative prostate-specific antigen level, Gleason score, positive cores and prostate volume. • The average operation duration required for the performance of each step did not differ significantly between the two groups. • Significant differences in favour of the FreeHand® camera holder were observed in case of horizontal and zooming camera movement, camera cleaning and camera errors. • Vertical camera movements were performed significantly faster by the human assistant compared to the robotic camera holder. • The average total operation duration was similar for both groups. • Positive surgical margins were detected in one patient in each group (4% of the patients). • A comparison of the FreeHand® robotic camera holder with human camera control during EERPE showed a similar time requirement for the performance of each step of the procedure. • The robotic system provided accurate and fast movements of the camera without compromising the outcome of the procedure.