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Ureters

Ureters

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...

Kidney Transplant II: Surgical Procedure

Kidney Transplant II: Surgical Procedure

Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living donor...

Urinary Tract Calculi VI: Surgical Management

Urinary Tract Calculi VI: Surgical Management

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Related Experiment Video

Updated: Jun 25, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Published on: November 22, 2019

[Lumbar transureteroureterostomy].

B G komiakov, B G Guliev, A I Novikov

Urologiia (Moscow, Russia : 1999)

|March 3, 2009

Summary

This summary is machine-generated.

This study introduces a novel surgical technique for ureteral stricture repair, utilizing the contralateral ureter from a removed kidney. This method successfully restored upper urinary tract function in patients with complex ureteral defects.

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A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction

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Last Updated: Jun 25, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

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Published on: November 22, 2019

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction

Published on: December 20, 2014

Area of Science:

Urology
Surgical Innovation
Reconstructive Surgery

Background:

Long ureteral strictures pose significant challenges in reconstructive urology.
Previous treatments for such conditions often involve complex procedures with variable outcomes.

Observation:

A novel surgical technique was developed to address long ureteral strictures.
The procedure involves transplanting the intact ureter from a contralateral removed or afunctional kidney.
Key surgical steps include ureteral mobilization, retroperitoneal tunnel creation, and end-to-end anastomosis.

Findings:

The technique was successfully applied in two male patients with severe lumbar ureteral strictures.
No postoperative complications were observed, with excellent wound healing and prompt patient discharge.
Both patients demonstrated restored upper urinary tract urodynamics following the procedure.

Implications:

This reconstructive approach offers a viable solution for extensive ureteral defects.
Utilizing the contralateral ureter provides a readily available source for ureteral repair.
The described surgical method achieves favorable functional results, enhancing patient recovery.