Robotic transabdominal retromuscular umbilical prosthetic hernia repair (TARUP): observational study on the operative time during the learning curve

PurposeThe use of extraperitoneal mesh in place of intra-peritoneal mesh is gaining popularity in laparoscopic ventral hernia repair. We have adopted a robotic assisted laparoscopic technique using a lateral single-dock robotic access with retromuscular mesh placement after opening the ipsilateral posterior rectus fascia. In this study, we wanted to evaluate the changes in operative times during the initial experience with this novel technique.MethodsThe initial consecutive patients undergoing robotic assisted transabdominal retromuscular umbilical prosthetic repair (r-TARUP) using a 15x15cm self-fixating mesh were prospectively entered in the study and the operative times during the separate steps of the surgical procedure were recorded. Complications were reported up to 4 week post operatively and quality of life was assessed using the EuraHS-QoL score.ResultsOver a 5 month inclusion period, 41 patients with either a primary (n=34) or a trocar site hernia (n=7) at the umbilicus were identified. All hernias had a mean diameter of less than 4cm. The total OR time decreased significantly during the learning curve (tertile 1: 126min versus tertile 3: 102min; p=0.002) due to a decrease in the skin-to-skin operating time (tertile 1: 81min versus tertile 3:61min; p=0.002). The decrease in the retromuscular dissection time was the most significant of all the steps that comprised the console time (p=0.004). The non-surgical time did not decrease (p=0.15). The operation was performed on an outpatient basis in 68% of patients and with a one-night-stay in 29%. No complications related to the introduction of the robotic technique for this approach were observed and the early outcome is promising, with favorable quality-of-life evaluation at 4weeks.ConclusionsThe decrease in operative time during the adoption of r-TARUP was mainly related to the improved efficiency in the dissection phase of the procedure. The technique is reproducible and safe and the operative time compares favorably to published operative times for laparoscopic and open retromuscular umbilical hernia repair.