How much bowel length is required to create a neobladder?

The creation of a neobladder involves using a segment of the small intestine to construct a new reservoir for urine following a cystectomy. The use of bowel for this reconstructive purpose requires a sufficient length to ensure that the neobladder can adequately store urine and provide a functional conduit to the urethra.

Choosing 50-60 cm of bowel length is appropriate because this amount allows for the surgical creation of a neobladder that can accommodate urine in a way that mimics the natural bladder's storage capacity. The length is essential to ensure that there is enough surface area and volume to hold urine while also allowing for adequate compliance and minimizing the risk of complications, such as urinary obstruction or insufficient capacity.

Additionally, a length of 50-60 cm helps to maintain blood supply to the bowel segment being used, thereby supporting its viability and functionality post-surgery. This measurement is aligned with clinical practices and outcomes observed in patients who undergo this type of reconstruction after bladder removal surgery.