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Retzius-Sparing Robot-Assisted Radical Prostatectomy
Published on: May 19, 2022
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Three-dimensional surgical navigation model with TilePro display during robot-assisted radical prostatectomy
Osamu Ukimura1, Monish Aron, Masahiko Nakamoto
1Center of Image-Guided Surgery and Robotic Surgery, USC Institute of Urology, Keck School of Medicine, University of Southern California , Los Angeles, California.
Journal of Endourology
|January 24, 2014
Summary
This study introduces a novel 3D surgical navigation model for robotic prostatectomy, improving visualization of cancer lesions and aiding nerve-sparing dissection. The model demonstrated high rates of negative surgical margins and undetectable PSA levels post-surgery.
Area of Science:
- Urology
- Surgical Oncology
- Medical Imaging
Background:
- Robotic-assisted radical prostatectomy aims for cancer removal while preserving nerves.
- Accurate localization of the index cancer lesion is crucial for nerve-sparing dissection.
- Current methods may lack precise visualization of the tumor's location relative to critical structures.
Purpose of the Study:
- To develop and evaluate a novel 3D surgical navigation model for robotic nerve-sparing radical prostatectomy.
- To integrate 3D transrectal ultrasonography (TRUS)-based cancer models with the da Vinci surgical console.
- To assess the model's impact on surgical precision and oncological outcomes.
Main Methods:
- Reconstruction of a 3D model of the index cancer lesion from 3D TRUS-guided biopsies in 10 patients.
- Image-fusion of key structures (prostate, cancer, neurovascular bundles, urethra, biopsy tracts) onto the da Vinci TilePro display.
- Surgical dissection guided by the 3D navigation model during radical prostatectomy.
Main Results:
- The 3D navigation model successfully displayed key anatomical structures and the index cancer lesion.
- Correlation was observed between the 3D model's lesion location and final histology.
- Negative surgical margins were achieved in 90% of cases.
- All patients had undetectable prostate-specific antigen levels at 3 months post-surgery.
Conclusions:
- The novel 3D surgical navigation model facilitates precise dissection during robotic prostatectomy.
- This technology aids in visualizing the index cancer lesion and critical surrounding structures.
- The model shows promise for improving oncological and functional outcomes in radical prostatectomy.
