Research advances in robot-assisted partial nephrectomy for anterior and posterior lip tumors of the kidney:focusing on postoperative complications
10.12483/j.issn.1009-8291.2026.04.014
- VernacularTitle:机器人辅助肾部分切除术治疗肾前唇与肾后唇肿瘤的研究进展：聚焦术后并发症
- Author:
Yuanhao PEI
1
;
Lulin MA
2
;
Shuilong ZHAI
3
;
Yimin WANG
3
;
Zhang LIANG
1
Author Information
1. Changzhi Medical University, Changzhi 046000
2. Department of Urology, Peking University Third Hospital, Beijing 100730
3. Department of Urology, Linfen People's Hospital, Linfen 041000, China
- Publication Type:Journal Article
- Keywords:
renal tumor;
renal function;
partial nephrectomy;
complications
- From:
Journal of Modern Urology
2026;31(4):376-381
- CountryChina
- Language:Chinese
-
Abstract:
Renal hilar tumors pose significant surgical challenges due to their proximity to major renal vessels and the collecting system. In robot-assisted partial nephrectomy, although both anterior and posterior lip tumors are considered renal hilar tumors, their operative difficulty and complication profiles differ markedly owing to distinct anatomical relationships and vascular adjacency. Anterior lip tumors, often involving tributaries of the renal vein, carry a relatively higher risk of intraoperative and postoperative bleeding. In contrast, posterior lip tumors, closer to the renal artery, are more likely to prolong warm ischemia time, thereby increasing the risk of postoperative renal impairment. Regarding urine leakage, although anterior lip tumors are theoretically closer to the collecting system and may pose a slightly elevated risk, precision reconstruction strategies—such as lip reconstruction based on sinus space anatomy—can effectively mitigate this risk. However, the specific difference in urine leakage risk between anterior and posterior lip tumors warrants further investigation. Both anterior and posterior lip tumors of the kidney can achieve low positive surgical margin rates in experienced centers. Complication risks are affected by multiple factors, including tumor anatomical complexity, warm ischemia time, and surgeon experience. Notably, R.E.N.A.L. score＞8 is associated with significantly increased complication risks. Preoperative meticulous imaging evaluation, selection of an appropriate surgical approach based on tumor location, controlled warm ischemia time, and application of delicate suturing and reconstruction techniques are essential strategies to reduce complications.
