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05:53
Intraoperative Ultrasound in Spinal Surgery
Published on: August 17, 2022
Intraspinal epidermoid tumor of the sacral canal presenting with urinary retention
The Journal of Urology
|June 1, 1975
Abstract:
A case of epidermoid tumor of the sacral area with S3 root irritation resulting in bladder dysfunction is presented and its possible relationship to spinal puncture is discussed. Precautions should be taken to prevent this complication by using a stylet instead of a plain needle. The recognition of this complication should always be in the differential diagnosis of a child with back pain, gait abnormality and bladder dysfunction with a history of spinal puncture.
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01:26The Micturition Reflex
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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 urine...
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