6 topics with concise breakdowns: definitions, key facts, and class questions.
The retroperitoneal space is a complex anatomical zone that requires the surgeon to have a confident knowledge of syntopy due to the abundance of major vessels and fascial spaces. In this section, we examine the topography and classic interventions on the urinary system organs.
The material covers extraperitoneal and transperitoneal surgical approaches, the stages of renal surgery (including pyelotomy and nephrectomy), as well as microsurgical aspects: ureteral suture and pelviureteric junction plasty. The technique of paranephric block is discussed in a dedicated section.
During practical classes and exams, the most strictly assessed topics are the justification for choosing the lumbotomy approach (according to Fedorov, Bergmann, Pirogov), the sequence of ligating the elements of the renal pedicle during nephrectomy (vein, artery, ureter), and the principles of tension-free ureteral anastomosis. Pay special attention to fascial layers and adipose capsules — this is a frequent topic for follow-up questions.
How to distinguish the peritoneum from the renal fascia during Fedorov's approach?
The retrorenal fascia appears as a dense, shiny structure, which visually distinguishes it from the parietal peritoneum in the surgical wound.
What is the difference between nephrotomy and nephrolithotomy?
Nephrotomy is the incision of the renal parenchyma for specific indications (e.g., carbuncle or pyonephrosis). If the surgery combines parenchymal incision with targeted stone removal, it is called nephrolithotomy.
Why should the mucosa not be included when suturing the ureter?
Sutures that end up in the lumen of the urinary tract serve as a matrix for the deposition of urinary salts. This leads to suture encrustation and calculus formation.
What position should the patient be in during the procedure?
The patient is placed on the healthy side, with a bolster securely placed underneath. This ensures optimal access to the injection zone.
Which surgical approach is used for pyelotomy?
An oblique lumbar incision according to Fedorov is used. It provides optimal access to the retroperitoneal space and the posterior wall of the renal pelvis.
What instrument is used to pass threads under the renal vessels?
Deschamps needle is used for the safe placement of silk ligatures beneath the elements of the vascular pedicle.
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