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Related Concept Videos

Ureters01:22

Ureters

452
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
452
Urinary Bladder01:23

Urinary Bladder

598
The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
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...
598

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Related Experiment Video

Updated: Jun 24, 2025

Urethral Stricture Induction Followed by Buccal Mucosa Graft Urethroplasty in a Rat Model
05:09

Urethral Stricture Induction Followed by Buccal Mucosa Graft Urethroplasty in a Rat Model

Published on: April 28, 2023

940

[Urethral reconstruction].

Clemens M Rosenbaum1, Christopher Netsch2, Andreas J Gross2

  • 1Klinik für Urologie, Asklepios Klinik Barmbek, Rübenkamp 220, 22307, Hamburg, Deutschland. c.rosenbaum@asklepios.com.

Urologie (Heidelberg, Germany)
|June 4, 2024
PubMed
Summary
This summary is machine-generated.

Urethral strictures, narrowed urethras, often require urethroplasty, a surgical repair, especially for penile strictures where endoscopic treatment has low success. Oral mucosa grafts are preferred for reconstruction.

Keywords:
Oral mucosa graftSpongiofibrosisUrethral strictureUrethroplastyUrethrotomy

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Area of Science:

  • Urology
  • Surgical Reconstruction

Background:

  • Urethral stricture involves abnormal narrowing of the urethra due to spongiofibrosis.
  • Diagnostic methods include uroflowmetry, sonography, and radiology.

Purpose of the Study:

  • To outline diagnostic and treatment strategies for urethral strictures.
  • To emphasize surgical intervention, particularly urethroplasty, for optimal outcomes.

Main Methods:

  • Review of diagnostic techniques for urethral strictures.
  • Discussion of surgical options including urethroplasty and perineal urethrostomy.
  • Consideration of graft materials like oral mucosa for reconstruction.

Main Results:

  • Endoscopic treatment has a low success rate for penile strictures.
  • Urethroplasty, preferably with oral mucosa, is recommended for most strictures.
  • Multi-stage reconstruction may be necessary depending on stricture complexity.

Conclusions:

  • Urethroplasty is the preferred treatment for penile and long bulbous urethral strictures.
  • Surgical techniques vary based on stricture characteristics, including scar resection, anastomosis, or augmentation.
  • Perineal urethrostomy offers an alternative for complex cases or simpler solutions.