Safety analysis of the Weigao laparoscopic surgical robot for renal cyst decortication via transperitoneal and retroperitoneal approaches
- 1Xuzhou Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu, China
- 2Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
Abstract
Objective: To evaluate the efficacy and conduct a safety analysis of the Chinese domestically produced Weigao Micro Hand laparoscopic surgical robot in renal cyst decortication via transperitoneal and retroperitoneal approaches.
Methods: Clinical data were collected from 63 patients with renal cysts who underwent robot-assisted laparoscopic surgery between May 2023 and July 2025. Among them, 31 patients were treated via the transperitoneal approach and 32 patients were treated via the retroperitoneal approach. Clinical characteristics, as well as surgical and short-term postoperative outcomes, were prospectively collected and analyzed.
Results: Both the transperitoneal and the retroperitoneal approaches were successfully completed without conversion to open surgery or other unplanned interventions. No statistically significant differences were observed between the two approaches in terms of the operative time (66.13 ± 24.99 min vs. 77.50 ± 27.62 min) or postoperative hospital stay (3.87 ± 1.48 days vs. 4.56 ± 1.08 days). The retroperitoneal approach was associated with significantly less intraoperative blood loss (15.68 ± 4.64 mL vs. 11.78 ± 3.80 mL, P < 0.05), whereas the transperitoneal approach was associated with a significantly shorter postoperative drainage duration (2.10 ± 0.98 days vs. 3.13 ± 1.62 days, P < 0.05).
Conclusion: The application of the Weigao robotic surgical system in renal cyst decortication demonstrates favorable feasibility and safety. With respect to surgical approach selection, both techniques have their respective advantages and disadvantages. Given the continuity of laparoscopic experience, considerations for surgical safety, and the benefit of more refined manipulation afforded by the robotic system, the retroperitoneal approach currently appears to be the preferable option.
Clinical Trial Registration: https://www.chictr.org.cn/showproj.html?proj=223823, identifier ChiCTR2400081949.
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BibTeX
@article{pan2026safety,
title = {{Safety analysis of the Weigao laparoscopic surgical robot for renal cyst decortication via transperitoneal and retroperitoneal approaches}},
author = {Run-Ze Pan and Hao Wang and Xin-Yu Liu and Xin-Lei Wang and Yu-Feng Sun and Bo Jiang and Zhi-Gang Li and Zhen-Duo Shi and Qing Liang},
journal = {Frontiers in Surgery},
year = {2026},
month = oct,
doi = {10.3389/fsurg.2026.1960246},
url = {https://doi.org/10.3389/fsurg.2026.1960246},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Safety analysis of the Weigao laparoscopic surgical robot for renal cyst decortication via transperitoneal and retroperitoneal approaches
AU - Run-Ze Pan
AU - Hao Wang
AU - Xin-Yu Liu
AU - Xin-Lei Wang
AU - Yu-Feng Sun
AU - Bo Jiang
AU - Zhi-Gang Li
AU - Zhen-Duo Shi
AU - Qing Liang
PY - 2026
DA - 2026/10/21
JO - Frontiers in Surgery
DO - 10.3389/fsurg.2026.1960246
UR - https://doi.org/10.3389/fsurg.2026.1960246
AB - Objective: To evaluate the efficacy and conduct a safety analysis of the Chinese domestically produced Weigao Micro Hand laparoscopic surgical robot in renal cyst decortication via transperitoneal and retroperitoneal approaches. Methods: Clinical data were collected from 63 patients with renal cysts who underwent robot-assisted laparoscopic surgery between May 2023 and July 2025. Among them, 31 patients were treated via the transperitoneal approach and 32 patients were treated via the retroperitoneal approach. Clinical characteristics, as well as surgical and short-term postoperative outcomes, were prospectively collected and analyzed. Results: Both the transperitoneal and the retroperitoneal approaches were successfully completed without conversion to open surgery or other unplanned interventions. No statistically significant differences were observed between the two approaches in terms of the operative time (66.13 ± 24.99 min vs. 77.50 ± 27.62 min) or postoperative hospital stay (3.87 ± 1.48 days vs. 4.56 ± 1.08 days). The retroperitoneal approach was associated with significantly less intraoperative blood loss (15.68 ± 4.64 mL vs. 11.78 ± 3.80 mL, P < 0.05), whereas the transperitoneal approach was associated with a significantly shorter postoperative drainage duration (2.10 ± 0.98 days vs. 3.13 ± 1.62 days, P < 0.05). Conclusion: The application of the Weigao robotic surgical system in renal cyst decortication demonstrates favorable feasibility and safety. With respect to surgical approach selection, both techniques have their respective advantages and disadvantages. Given the continuity of laparoscopic experience, considerations for surgical safety, and the benefit of more refined manipulation afforded by the robotic system, the retroperitoneal approach currently appears to be the preferable option. Clinical Trial Registration: https://www.chictr.org.cn/showproj.html?proj=223823, identifier ChiCTR2400081949.
SN - 2296-875X
ER -