Assessment of the clinical application of optical navigation technology for precise puncture in sacral neuromodulation surgery?
10.3760/cma.j.cn112330-20250526-00221
- VernacularTitle:光学导航技术在骶神经调控术中精准穿刺的应用评估
- Author:
Ziqin ZHOU
1
;
Xin SONG
;
Tingting LYU
;
Weilin FANG
;
Jin HUANG
;
Bo WANG
;
Jianwei LYU
Author Information
1. 上海理工大学公利医疗技术学院，上海 200093
- Publication Type:Journal Article
- Keywords:
Neurogenic bladder;
Sacral neuromodulation;
Neural stimulation;
Optical navigation
- From:
Chinese Journal of Urology
2025;46(9):653-660
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the clinical application value of optical navigation system（ONS）-guided sacral neuromodulation（SNM）electrode implantation for precise puncture.Methods:?This study was a randomized，controlled trial. Patients who underwent SNM electrode implantation at the Gongli Hospital，Pudong New Area，Shanghai，from February 2024 to March 2025 were included. Inclusion criteria：aged 18?80 years，meeting the indications recommended by the Chinese expert consensus on the clinical application of sacral neuromodulation or expanded applications，and having completed pelvic CT and MRI examinations to ensure image quality for navigation system use. Exclusion criteria：progressive neurological diseases，severe urinary tract infections，urinary tract obstruction，or other conditions that may affect surgical outcomes and safety. Patients were randomly divided into two groups using a random number table and a single-blind design was implemented. The two groups underwent different puncture guidance methods in the stage Ⅰ surgery，but other treatments and follow-up measures were consistent.The experimental group used ONS-guided puncture with preoperative pelvic CT and MRI scans for multimodal image fusion and 3D reconstruction and software-based puncture path planning for real-time intraoperative guidance. The control group used X-ray-guided cross-positioning，determining the S3 sacral foramen for puncture based on anatomical landmarks with a metal positioning ruler under fluoroscopy. The puncture path was planned using software to achieve real-time intraoperative guidance. Intraoperative indicators（number of punctures，puncture time，electrode contact points，minimum effective voltage，X-ray fluoroscopy time，radiation dose，total surgical time）and postoperative outcomes（complications，pain scores，stage Ⅱ permanent implantation rates）were compared between the two groups to assess the advantages and feasibility of ONS-guided sacral nerve electrode implantation.Results:?A total of 35 patients were included in each group. The experimental group had fewer intraoperative puncture attempts［2.0（2.0，3.0）vs. 5.0（4.0，7.0）］and shorter puncture procedure time［7.5（6.0，10.0）min vs. 14.0（12.0，18.0）min］，indicating more accurate and efficient ONS-guided puncture. There was no statistical difference in the number of electrode contact points between the two groups［3.0（3.0，4.0）vs. 3.0（3.5，3.8）， P = 0.374］，but the experimental group had a lower effective voltage［1.8（1.8，2.5）V vs. 2.5（1.8，3.0）V］and shorter stimulator adjustment time［10.0（8.0，12.0）min vs. 16.0（13.0，20.0）min］. The experimental group had shorter intraoperative X-ray fluoroscopy time［1.6（1.1，2.2）min vs. 4.6（3.8，6.0）min］，lower radiation dose［165.8（107.6，205.3）mGy vs. 427.4（325.1，636.5）mGy］，shorter total surgical time［52.0（49.0，57.8）min vs. 68.0（62.0，74.0）min］，less intraoperative blood loss［4.0（4.0，5.0）ml vs. 6.0（5.0，7.0）ml］，and a lower proportion of patients requiring supplemental local anesthesia［14.3%（5/35）vs. 40.0%（14/35）］. The postoperative wound infection rates were not statistically different between the two groups［0 vs. 2.9%（1/35）， P = 1.000］，but the experimental group had significantly lower pain scores on postoperative day 1［（1.9 ± 1.1）vs.（3.2 ± 1.4）］and a higher stage Ⅱ permanent implantation rate［85.7%（30/35）vs. 65.7%（23/35）］，with statistically significant differences（ P < 0.05）. Conclusions:?ONS-guided SNM electrode implantation reduces the number of puncture attempts，surgical time，and X-ray radiation，effectively lowers the effective voltage，and increases the stage Ⅱ permanent implantation rate.
