Background : Laparoscopic left lateral sectionectomy(L-LLS) stands as a cornerstone procedure in hepatobiliary minimal surgery, frequently employed for various benign and malignant liver lesions. This study aimed to analyze the peri and post-operative surgical outcomes of single port robotic left lateral sectionectomy(SPR-LLS) versus those of laparoscopic left lateral sectionectomy(L-LLS) in patients with hepatic tumors.

Methods : January 2020 and June 2023, 12 patients underwent SPR-LLS. During the same period, 30 patients of L-LLS procedures were performed. In total, 12 patients in the robotic group and 24 patients in the laparoscopic group were matched.

Results : When the SPR-LLS and L-LLS groups were compared, the operation time was longer in the SPR-LLS group with less blood loss, shorter hospital stay. Postoperative complications were observed in 3(12.5%) patients in the L-LLS group and in 1(8.3%) patient in the SPR-LLS group.

Conclusions : Single port robotic left lateral sectionectomy using da Vinci SP system was comparable to laparoscopic LLS in terms of surgical outcomes. SPR-LLS was associated with lower blood loss and less post-operative length of stay compared by L-LLS. This findings suggests that left lateral sectionectomy is technically feasible and safe with the da Vinci SP system in select patients.