Related Experiment Video
Updated: Apr 7, 2026

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction
Published on: December 20, 2014
Robot-Assisted Ileal Ureter Replacement: Comparisons Between Totally Intracorporeal and Extracorporeal Ileal Segment
Pan Song1, Cong Huang1, Xiang Wang1
1Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, Beijing, China.
Background:
The comparative perioperative outcomes of totally intracorporeal robot-assisted ileal ureteral replacement (TI-RAIUR) versus that of RAIUR with extracorporeal ileal segment preparation (RAIUR-EI) remain undefined. This study pioneers a comparative analysis between these approaches to guide clinical individualised therapy.
Methods:
Thirty-four patients who underwent RAIUR (22 via RAIUR-EI and 12 via TI-RAIUR) were included. Baseline characteristics, perioperative outcomes, and follow-up data were systematically compared.
Results:
There were no between-group differences in baseline characteristics. The RAIUR-EI approach significantly reduced the reoperation time for initial failed procedures. Both groups achieved 100% 1-year subjective success and stable long-term renal function. The complication rates were statistically similar, although one Clavien-Dindo III incisional hernia occurred in the RAIUR-EI group. In addition, the TI-RAIUR approach demonstrated better aesthetic outcomes.
Conclusions:
Both techniques achieve reliable outcomes for long-segment ureteral reconstruction. The RAIUR-EI approach may optimise efficiency in more complex cases, whereas the TI-RAIUR technique results in better aesthetic outcomes.

