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Updated: May 14, 2026
Retzius-Sparing Robot-Assisted Radical Prostatectomy
Published on: May 19, 2022
Robot-Assisted Radical Prostatectomy Using the KangDuo-SR-2000: A Prospective, Multicenter, Single-Arm Clinical Study
Zihao Tao1,2,3,4, Zheng Zhang1,2,3,4,5, Ziqi Wang6
1Department of Urology, Peking University First Hospital, Beijing, China.
Background:
This study aimed to evaluate the feasibility, safety and effectiveness of the newly developed KangDuo-Surgical-Robot-2000 (KD-SR-2000) in robotic assisted radical prostatectomy (RARP).
Methods:
This prospective, multicenter, single-arm trial was conducted from October 2023 to April 2024. Thirty patients with clinical T1-3 prostate cancer underwent RARP using the KD-SR-2000. The study was approved by the institutional review boards. Perioperative results, early oncologic outcomes, urinary continence, and ergonomic workload (NASA-TLX) were assessed.
Results:
All surgeries were performed successfully without any conversion. No severe perioperative complications (Clavien-Dindo grade ≥ III) or equipment-related adverse events occurred. Positive surgical margin was observed in five patients (16.7%). One (3.3%) patient experienced PSA persistence at 6 weeks. Urinary continence rate was 66.7% (20/30) at 4 weeks after catheter removal. The median NASA-TLX score was 22.5 (IQR 6-35.25).
Conclusions:
This study demonstrates the preliminary feasibility, safety and effectiveness of the KD-SR-2000 robotic system in RARP.
Trial Registration:
www.chictr.org.cn: ChiCTR2300076954.
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