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Subcapsular relocation for sacral neuromodulation pulse generator implant revision
1Central Maine Medical Center, Women's Specialty Center and Bladder Control Center, Lewiston, ME, USA.
Summary
Revision surgery for sacral neuromodulation (Interstim) implant site pain can be effectively managed with subcapsular pulse generator placement. This technique successfully resolved pain in all patients by creating a protective cushion.
Area of Science:
- Urology
- Neurosurgery
- Biomedical Engineering
Background:
- Implant site pain is a common complication of sacral neuromodulation devices.
- Revision surgery is often necessary to address pain and device-related issues.
Purpose of the Study:
- To describe a surgical technique for subcapsular pulse generator placement in revision cases.
- To evaluate the efficacy of this technique in resolving implant site pain.
Main Methods:
- The existing pulse generator capsule was incised.
- The new pulse generator was placed beneath the original capsule floor.
- A layered closure technique was employed.
Main Results:
- Five patients underwent the subcapsular placement procedure.
- All five patients experienced successful resolution of their implant site pain.
Conclusions:
- Subcapsular pulse generator placement is an effective revision strategy for sacral neuromodulation.
- The technique likely improves microcirculation and provides cushioning, mitigating mechanical stress.
