The Influence of 3D Technology Integration on Laparoscopic Partial Nephrectomy Practice and Surgical Outcomes

Area of Science:

• Urology
• Surgical Oncology
• Minimally Invasive Surgery

Background:

• Partial nephrectomy (PN) is the standard treatment for renal cell carcinoma (RCC), balancing oncologic control with kidney preservation.
• Traditional 2D laparoscopy has limitations in depth perception and accuracy, particularly for complex cases.
• Three-dimensional (3D) laparoscopy offers enhanced visualization and precision in surgical procedures.

Purpose of the Study:

• To evaluate the impact of 3D laparoscopy on partial nephrectomy (PN) outcomes for larger and complex renal tumors.
• To compare the rates of PN, warm ischemia time (WIT), and operative time between pre-3D and post-3D laparoscopy groups.
• To assess the influence of 3D laparoscopy on positive surgical margins and complication rates.

Main Methods:

• Retrospective analysis of 200 laparoscopic partial nephrectomies performed by a single surgeon (2020-2024).
• Cases were divided into pre-3D (n=100) and post-3D (n=100) groups.
• Key outcomes analyzed included PN rate, WIT, operative time, positive surgical margins, and complications, with stratification for tumor size and complexity (RENAL score).

Main Results:

• The post-3D group showed a significant increase in PN for tumors >4 cm (48% vs. 35%, p=0.028) and high complexity tumors (RENAL score ≥8) (41% vs. 29%, p=0.035).
• Median WIT was significantly shorter in the post-3D group (24 min vs. 29 min for larger tumors, p=0.018; 26 min vs. 32 min for high complexity, p=0.022).
• Total operative time was reduced (175 min vs. 195 min, p=0.031), with lower positive surgical margins (0% vs. 2%) and comparable complication rates (5% vs. 4%, p=0.712).

Conclusions:

• Three-dimensional laparoscopy significantly enhances the feasibility and precision of partial nephrectomy for larger and complex renal tumors.
• Adoption of 3D laparoscopy leads to improved surgical outcomes, including shorter ischemia and operative times, and reduced positive margins.
• 3D laparoscopy facilitates kidney-sparing surgery for challenging RCC cases without increasing patient morbidity.