What question did this study set out to answer?

This study aims to present a novel reconstruction technique for bladder neck contracture using a falling-down flap.

April 12, 2026Open Access

Falling-Down Bladder Flap Reconstruction for Recalcitrant Bladder Neck Contracture: One Complex Case and Stepwise Technique

Key Points

This study aims to present a novel reconstruction technique for bladder neck contracture using a falling-down flap.
Described a transvesical anterior bladder wall flap reconstruction technique.
Performed a combined procedure including diverticulectomy and ureteral reimplantation.
Achieved wide bladder exposure for the surgical process.
Achieved normal uroflow with a maximum flow rate of 17 mL/s.
No residual urine reported three years post-surgery.
Demonstrated durability and effectiveness of the bladder flap technique.

Abstract

This study describes a transvesical “falling-down” anterior bladder wall flap reconstruction for recalcitrant bladder neck contracture (BNC). One complex case, a rotated, well-vascularized bladder flap was sutured to the distal urethra/prostate bed after wide bladder exposure. A 49-year-old man underwent combined procedures with diverticulectomy and ureteral reimplantation, achieving normal uroflow (Qmax 17 mL/s) and no residual urine for three years. The falling-down bladder flap offers durable tissue and wide exposure to facilitate concomitant repairs and may complement traditional BNC techniques.

Falling-Down Bladder Flap Reconstruction for Recalcitrant Bladder Neck Contracture: One Complex Case and Stepwise Technique

Key Points

Abstract

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