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Chinese Journal of Endourology(Electronic Edition) ›› 2026, Vol. 20 ›› Issue (02): 191-196. doi: 10.3877/cma.j.issn.1674-3253.2026.02.011

• Clinical Research • Previous Articles    

Treatment of severe hypospadias with inverted "J" flap and U-shaped stent drainage

Xiuping Wen(), Guangbin Jiang, Yuan Li   

  1. Department of Pediatric Surgery, Zhuhai Center for Maternal and Child Health Care, Zhuhai 519000, China
  • Received:2025-04-07 Online:2026-04-01 Published:2026-03-10
  • Contact: Xiuping Wen

Abstract:

Objective

To evaluate the efficacy of the inverted "J" flap helical suture tunnel technique for neomeatus formation and U-shaped stent tube drainage in the treatment of severe hypospadias.

Methods

A retrospective analysis was conducted on 25 patients with severe hypospadias who underwent staged hypospadias repair in our hospital from April 2019 to December 2023. All patients first underwent correction of penile curvature (first stage). Six months later, a second-stage tubularized preputial flap urethroplasty was performed. The neomeatus was created using the inverted "J" flap helical suture tunnel technique, and a U-shaped stent tube was used for urinary diversion.

Results

Among the 25 patients, urethrocutaneous fistula occurred in 6 cases (24%). The urethral meatus was located at the tip of the glans in all cases, and the penile appearance was satisfactory.

Conclusion

The second-stage urethroplasty using the inverted "J" flap helical suture tunnel technique for neomeatus formation combined with U-shaped stent tube drainage results in a glanular meatus, is simple to perform, has a low incidence of urethral stricture, and provides satisfactory penile appearance.

Key words: Hypospadias, Urethroplasty, Flap, Stent drainage

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