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Updated: Aug 5, 2026
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Retzius-Sparing Robot-Assisted Radical Prostatectomy
Published on: May 19, 2022
Autologous Vas Deferens Sling for Early Urinary Continence During Retzius-Sparing Robot-Assisted Radical
Zhiyuan Yang1, Jiyuan Sun1, Jingxian Xu1
1Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
Healthcare (Basel, Switzerland)
|July 28, 2026
Summary
An autologous vas deferens (AVD) sling improved early urinary continence after Retzius-sparing robot-assisted radical prostatectomy (RS-RARP). This surgical technique showed higher continence rates within the first month, especially for patients with shorter urethral length.
Area of Science:
- Urology
- Surgical Oncology
- Robotic Surgery
Background:
- Postoperative urinary incontinence (UI) is a significant concern following radical prostatectomy.
- Retzius-sparing robot-assisted radical prostatectomy (RS-RARP) aims to preserve continence but UI remains a challenge, particularly in high-risk patients.
- Novel surgical techniques are needed to enhance early urinary continence recovery.
Purpose of the Study:
- To evaluate the efficacy and safety of an autologous vas deferens (AVD) sling for improving early urinary continence.
- To assess the impact of AVD sling suspension on continence recovery after RS-RARP.
- To identify predictors of continence recovery in patients undergoing RS-RARP.
Main Methods:
- A single-center, prospective, randomized trial involving 200 high-risk patients for UI after RS-RARP.
- Patients were randomized to undergo RS-RARP with or without AVD sling suspension.
- Primary endpoint: immediate urinary continence (0-1 safety pads/day within 7 days post-catheter removal); secondary outcomes: continence up to 3 months, EPIC-26, IPSS, and subgroup analysis by preoperative membranous urethral length (MUL).
Main Results:
- The AVD sling group demonstrated significantly higher immediate (69.0% vs. 55.0%) and 1-month (81.0% vs. 67.0%) continence rates.
- Improved EPIC-26 scores and lower IPSS were observed in the AVD sling group during the early postoperative period.
- Patients with preoperative MUL < 12 mm showed a greater early continence benefit from the AVD sling; operative time increased, but complication rates and oncological outcomes were similar.
Conclusions:
- The autologous vas deferens (AVD) sling can significantly improve early urinary continence recovery within the first month after RS-RARP.
- The AVD sling appears particularly beneficial for high-risk patients with shorter preoperative membranous urethral length (MUL).
- The AVD sling is a safe adjunct to RS-RARP, with no increase in complications or compromise of short-term oncological outcomes.