Modulating pulse-width during spinal surgery
Official title: Pulse-width Modulation During Pedicle Screw Stimulation
Run by Dartmouth-Hitchcock Medical Center · NCT06120231 · Data updated 2026-11-12
This study is testing how different settings of electrical stimulation during spinal surgery can affect the safety and effectiveness of the procedure for patients.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | Dartmouth-Hitchcock Medical Center Academic / other |
| Locations | 1 site (Lebanon, New Hampshire) |
| Status | Recruiting |
| Started | December 1, 2023 |
| Main results expected | June 1, 2026 |
| Study ends | October 1, 2027 |
| Registry record updated | July 9, 2026 |
| Trial ID | NCT06120231 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients scheduled for surgery involving pedicle screw placement and intraoperative neuromonitoring.
✕Probably not a fit
Patients who are neonates, minors, pregnant women, prisoners, or cognitively impaired will not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This project aims to investigate the effects of pulse-width modulation (PWM) during the electrical stimulation of pedicle screws in spinal surgeries. The study will record the response thresholds associated with different PWM settings to better understand their impact on neuromonitoring. By focusing on pulse-width as a variable, this research seeks to expand the knowledge of stimulation parameters beyond just intensity. The initial phase will not collect additional data beyond the PWM response thresholds.
Why it matters
Potential benefit: If successful, this study could enhance the safety and effectiveness of spinal surgeries by improving neuromonitoring techniques.
How similar studies have gone: While previous studies have focused on stimulation intensity, this approach to pulse-width modulation is relatively novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * A patient will be eligible for study participation once they have been booked for a surgery involving pedicle screw placement and intraoperative neuromonitoring. Exclusion Criteria: * The study excludes neonates, minors, pregnant women, prisoners and cognitively impaired patients.
Where it's running
-
Dartmouth-Health
Lebanon, New Hampshire, United States Recruiting
Study contacts
- Principal investigator: Linton Evans, Dr. — Dartmouth-Hitchcock Medical Center
- Study coordinator: Lauren Sinks, MPH
- Email: Lauren.J.Sinks@hitchcock.org
- Phone: 6036179909
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.