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Updated: Apr 28, 2026

Retzius-Sparing Robot-Assisted Radical Prostatectomy
Published on: May 19, 2022
Urethtral approach in retroperitoneoscopic radical prostatectomy: a novel technique for safe prostate dissection
Tetsuo Nozaki1, Akihiro Morii1, Yasuyoshi Fujiuchi1
1Department of Urology, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Sugitani, Toyama, Japan.
Background And Objectives:
Laparoscopic radical prostatectomy (LRP) remains technically challenging and is associated with a steep learning curve. Prostate apex dissection (PAD) is one the most challenging elements of LRP. This study describes a novel technique for PAD using a transurethral approach (urethral assistance).
Methods:
Through the transurethral route, Young's foreign body forceps is introduced under laparoscopic vision and both vas deferens are grasped for efficient traction of the prostate. The forceps is quickly clamped to the laparoscope holder. Urethral assistance facilitates more efficient dissection during dissection of the bladder neck, vas deferens, and seminal vesicles, transaction of the posterior prostatovesical junction, mobilization of the prostate off the rectum, and ligation of the dorsal venous complex.
Results:
In 10 patients with localized prostate cancer who underwent LRP using the urethral assistance technique, sufficient retraction of the prostate was maintained in the appropriate direction. No complications related to urethral assistance were observed. No internal or external instrument collisions occurred during PAD.
Conclusion:
Urethral assistance provides a simple, reliable, cost-effective approach for performing PAD during LRP.
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The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...

