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Updated: May 14, 2026

Retzius-Sparing Robot-Assisted Radical Prostatectomy
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Robot-Assisted Radical Prostatectomy Using the KangDuo-SR-2000: A Prospective, Multicenter, Single-Arm Clinical

Zihao Tao1,2,3,4, Zheng Zhang1,2,3,4,5, Ziqi Wang6

  • 1Department of Urology, Peking University First Hospital, Beijing, China.

The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS
|May 13, 2026
PubMed
Summary
This summary is machine-generated.

The new KangDuo-Surgical-Robot-2000 (KD-SR-2000) shows promise for robotic assisted radical prostatectomy (RARP). This system is feasible, safe, and effective in early trials for prostate cancer surgery.

Keywords:
KangDuo surgical robotprostate cancerrobot‐assistant radical prostatectomy

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Area of Science:

  • Urology
  • Surgical Robotics
  • Oncology

Background:

  • Robotic assisted radical prostatectomy (RARP) is a standard treatment for prostate cancer.
  • Evaluating novel robotic systems is crucial for advancing surgical techniques.
  • The KangDuo-Surgical-Robot-2000 (KD-SR-2000) is a newly developed system for RARP.

Purpose of the Study:

  • To assess the feasibility, safety, and effectiveness of the KD-SR-2000 in RARP.
  • To evaluate perioperative outcomes, oncologic control, and patient continence.
  • To measure the ergonomic workload associated with the KD-SR-2000 system.

Main Methods:

  • A prospective, multicenter, single-arm trial involving 30 patients with T1-3 prostate cancer.
  • Patients underwent RARP using the KD-SR-2000.
  • Outcomes assessed included perioperative results, oncologic control, urinary continence, and NASA-TLX scores.

Main Results:

  • All 30 RARP surgeries were completed successfully without conversion or severe complications (Clavien-Dindo grade ≥ III).
  • Positive surgical margins occurred in 16.7% of patients, and 3.3% had PSA persistence at 6 weeks.
  • Urinary continence was achieved in 66.7% of patients at 4 weeks post-catheter removal, with a median NASA-TLX score of 22.5.

Conclusions:

  • The KD-SR-2000 robotic system demonstrates preliminary feasibility, safety, and effectiveness for RARP.
  • The system is a viable option for prostate cancer surgery, with acceptable early oncologic and functional outcomes.
  • Further studies are warranted to confirm long-term results and compare with existing robotic platforms.