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Preparation of Peripheral Nerve Stimulation Electrodes for Chronic Implantation in Rats
Published on: July 14, 2020
Optimizing electrode implantation in sacral nerve stimulation--an anatomical cadaver study controlled by a
N C Buchs1, J-C Dembe, J Robert-Yap
1Unit of Proctology, Department of Surgery, University Hospital of Geneva, Geneva, Switzerland. nicholas.c.buchs@hcuge.ch
International Journal of Colorectal Disease
|August 21, 2007
Summary
Determining optimal electrode insertion angles for sacral nerve stimulation using laparoscopic visualization improves lead placement accuracy. These findings aim to standardize the procedure for better patient outcomes in treating incontinence and pelvic pain.
Area of Science:
- Urology
- Neurology
- Surgical Techniques
Background:
- Sacral nerve stimulation is a key therapy for neurogenic fecal/urine incontinence, constipation, and pelvic pain syndromes.
- Accurate electrode placement is crucial for effective sacral nerve stimulation.
- Current techniques often rely on intra-operative fluoroscopy, with room for improved standardization.
Purpose of the Study:
- To determine the optimal electrode insertion angles for sacral nerve stimulation.
- To achieve precise electrode placement along the S3 sacral root.
- To enhance the standardization and reproducibility of the sacral nerve stimulation procedure.
Main Methods:
- Anterior dissection of the presacral space in five fresh cadaver pelvises.
- Insertion of needles and electrodes into the S3 foramen using traditional percutaneous techniques.
- Laparoscopic visualization and goniometric assessment of insertion angles, validated in two living patients.
Main Results:
- Mean sagittal plane insertion angle: 62.9±3 degrees (range 59-70).
- Mean axial plane insertion angles: Left side 91.7±13.5 degrees (range 80-110), Right side 83.2±7.7 degrees (range 75-95).
- These angles facilitated optimal lead placement along the S3 sacral root.
Conclusions:
- Direct laparoscopic visualization enables accurate calculation of optimal insertion angles for sacral nerve stimulation.
- Standardized insertion angles can lead to more consistent and reproducible surgical outcomes.
- Improved technique standardization has the potential to enhance patient outcomes for incontinence and pelvic pain.
