Related Experiment Video
Updated: Mar 24, 2026

Detrusor Underactivity Model in Rats by Conus Medullaris Transection
Published on: August 28, 2020
Sacral Nerve Stimulation for Neurogenic Bladder
Lai-Fung Li1, Gilberto Ka-Kit Leung1, Wai-Man Lui1
1Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong.
Background:
Neurogenic bladder refers to dysfunction of the urinary bladder secondary to diseases of the nervous system that result in problems with urine storage, micturition, or both. The most common causes are multiple sclerosis and spinal cord injury. Patients commonly present with recurrent UTIs, obstructive uropathies, and urinary retention. Without proper treatment, neurogenic bladder may result in nephropathy and renal failure, both of which have a significant negative impact on the health and life expectancy of patients. Restoration of lost neural function using artificial stimulators is a feasible therapeutic strategy. This article reviews the pathophysiology of neurogenic bladder and the 2 most commonly employed sacral nerve stimulation methods-the Brindley procedure and sacral neuromodulation.
Related Concept Videos
The Micturition Reflex
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...
Urinary Bladder
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...

