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Intraoperative real-time display of 3D reconstruction models in robot-assisted partial nephrectomy
Shunsuke Miyamoto1, Hiroyuki Shikuma2, Ryo Tasaka2
1Department of Urology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, 734-8551, Japan. sm0025@hiroshima-u.ac.jp.
Surgical Endoscopy
|January 6, 2026
Summary
Intraoperative 3D models improve robot-assisted partial nephrectomy (RAPN) outcomes. This technique reduces ischemia time and complications, enhancing patient care during renal tumor surgery.
Area of Science:
- Urology
- Surgical Technology
- Medical Imaging
Background:
- Robot-assisted partial nephrectomy (RAPN) is standard for renal tumors.
- Tumor localization and surgical planning in RAPN can be challenging, especially with complex anatomy.
Purpose of the Study:
- To evaluate the utility of intraoperative real-time 3D reconstruction models in RAPN.
- To assess the impact of 3D models on surgical outcomes and patient safety.
Main Methods:
- Retrospective analysis of 230 RAPN patients: 57 with 3D models (3D-R group) and 173 without (control).
- 3D models generated from CT scans, displayed intraoperatively for planning and guidance.
- Propensity score matching used to compare outcomes between groups.
Main Results:
- The 3D-R group showed significantly shorter warm ischemia times (p=0.019).
- Fewer overall and major complications were observed in the 3D-R group (p=0.023, p=0.041).
- Higher trifecta status achievement rate in the 3D-R group (p=0.005).
Conclusions:
- Intraoperative 3D reconstruction models enhance RAPN by improving surgical precision.
- These models lead to reduced ischemia, fewer complications, and better functional outcomes.
- 3D modeling improves the quality of care for patients undergoing RAPN.
