Robotic-assisted laparoscopic ureterocalicostomy (RALUC): a systematic review of its applications
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By
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Theodoros Spinos
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Panagiotis Kallidonis
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Vasileios Tatanis
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Kristiana Gkeka
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Angelis Peteinaris
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Anja Dietel
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Ho Thi Phuc
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Doreen Trebst
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Stefan Siemer
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Toni Franz
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Evangelos Liatsikos
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Jens-Uwe Stolzenburg
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December 17, 2025
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Clinical Scorecard: Systematic Review of Robotic-Assisted Laparoscopic Ureterocalicostomy Applications
At a Glance
| Category | Detail |
|---|
| Condition | Ureteropelvic junction obstruction (UPJO) and complex upper urinary tract strictures |
| Key Mechanisms | Anastomosis between lower pole calyces and ureter after excision of lower pole renal parenchyma to restore urinary tract continuity |
| Target Population | Adults and pediatric patients with congenital or complicated UPJO, failed pyeloplasty, proximal ureteral strictures, or complex renal anatomy |
| Care Setting | Minimally invasive surgical setting utilizing robotic-assisted laparoscopic platforms |
Key Highlights
- RALUC offers enhanced precision, 3D visualization, and improved ergonomics compared to open and conventional laparoscopic surgery.
- Indications include congenital UPJO, complex renal anatomy, failed prior reconstructive surgeries, and long upper ureteral strictures.
- Current evidence is limited to small case series and retrospective studies with low to moderate level of evidence.
Guideline-Based Recommendations
Diagnosis
- Identify patients with UPJO, complex renal anatomy, or proximal ureteral strictures requiring reconstructive surgery.
Management
- Consider robotic-assisted laparoscopic ureterocalicostomy (RALUC) as a minimally invasive alternative to open or laparoscopic ureterocalicostomy.
- Use RALUC for patients with failed prior pyeloplasty or complicated anatomical situations.
Monitoring & Follow-up
- Assess surgical time, success rates, and complications using Clavien-Dindo Classification.
- Monitor hospitalization time, blood loss, conversion rates, and need for reoperation postoperatively.
Risks
- Potential complications related to delicate dissection and suturing of vital tissues.
- Risks associated with conversion to open surgery and reoperation.
Patient & Prescribing Data
Adults and children with UPJO or proximal ureteral strictures undergoing RALUC.
RALUC is feasible and safe with promising success rates, but evidence is limited to small, mostly non-comparative studies.
Clinical Best Practices
- Careful patient selection based on anatomical complexity and prior surgical history.
- Utilize robotic platform advantages such as motion scaling, 3D visualization, and enhanced dexterity for precise dissection and suturing.
- Follow standardized outcome measures including Clavien-Dindo classification for complications.
- Consider multidisciplinary discussion for complex cases and failed prior interventions.
References
