A clinical study on 3D virtual model-assisted precise navigation for laparoscopic partial nephrectomy.

Background: Laparoscopic partial nephrectomy (LPN) is a standard surgical treatment option for renal tumors. Prior to LPN, it is necessary to evaluate the tumor condition and develop a surgical plan using precise imaging.

Objective: To explore the clinical application value of 3D virtual model (3DVM) in LPN.

Methods: A total of 80 patients with renal tumor who underwent LPN were measured. Patients were divided into three cohorts (A, B, C) according to the difficulty of surgery. Each group was further divided into the test and control groups based on the application of preoperative 3DVM. Surgical safety and efficacy were assessed, and a questionnaire was developed to investigate the opinions of patients and physicians on 3DVM.

Results: The duration of LPN and intraoperative renal artery occlusion were significantly different between the test and control groups in both cohorts A and B (P< 0.05). In cohort C, the surgical duration, duration of intraoperative renal artery occlusion, length of stay, time to postoperative ambulation, intraoperative bleeding, incidence of postoperative bleeding were significantly between the two groups (P< 0.05). The analysis both of patients and physicians questionnaire scores were statistically significant (P< 0.05).

Conclusions: 3DVM contributes to safer and more effective LPN. It benefits both doctors and patients.