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

The 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.

Over 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 4 cm. The total OR time decreased significantly during the learning curve (tertile 1: 126 min versus tertile 3: 102 min; p = 0.002) due to a decrease in the skin-to-skin operating time (tertile 1: 81 min versus tertile 3:61 min; 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 4 weeks.

The 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.