Novel Surgical Technique of Liver Parenchyma Transection During Robotic‐Assisted Liver Resection: “Trac & Pac”

Background/Purpose A standardized liver parenchymal transection method in robotic‐assisted liver resection has not yet been established, and the techniques used vary among institutions. We developed a novel transection technique for robotic‐assisted liver resection termed “Trac & Pac,” which uses maryland bipolar forceps with a gentle stroking motion and strategic traction to progressively expose and dissect the liver parenchyma. Methods We described the technical details of “Trac & Pac” and Evaluated its short‐term outcomes (2022–2025), comparing them with those of conventional laparoscopic liver resection using the Cavitron Ultrasonic Surgical Aspirator ( CUSA ) (2018–2022). Results The robotic‐assisted liver resection group included 26 patients who underwent robotic left or right hepatectomy with the “Trac & Pac” technique, whereas the laparoscopic liver resection group comprised 34 patients who underwent laparoscopic left or right hepatectomy using the CUSA . The robotic group had a longer time from pneumoperitoneum to the start of intra‐abdominal manipulation than the laparoscopic group ( p < 0.001). Both groups had similar parenchymal transection times, blood loss, and postoperative complications. Conclusions “Trac & Pac” is a safe and feasible robotic‐assisted liver parenchymal transection technique that may provide a new solution for improving precision and exposure in minimally invasive liver surgery.