Related Experiment Video
Updated: Feb 21, 2026

Transcorporal Artificial Urinary Sphincter Cuff Placement in a Case Requiring Revision for Urethral Atrophy
Published on: June 16, 2022
Knotted urethral catheter: an unusual complication in adults
Samer Jallad1, Anupa Shah1, Jeetesh Bhardwa1
1Department of Urology, Frimley Health NHS Foundation Trust, Slough, UK.
Abstract:
Knotting of feeding tubes or urinary catheters has been reported as a rare complication in paediatrics when draining the bladder. This is caused by inserting thin flexible tubes too far in, allowing it to coil. We present a case of a 70-year-old woman who was catheterised during a routine spinal surgery, and the catheter coiled and balloon failed to deflate requiring a cystostopic approach to puncture the balloon and remove it. Awareness of this complication in female catheterisation and education on length of catheter insertion is important to avoid this.
Related Concept Videos
Cardiac Catheterization I: Pre-Procedure Overview
Urethra
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...
Urinary Tract Infection I: Introduction
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
Urinary Tract Infection IV: Nursing Management
Urologic Endoscopic Procedure: Cystoscopic Examination

