Radiographic lead migration in percutaneous spinal cord stimulator trials
Authors' conclusion
Radiographic lead migration of approximately half of a vertebral level in a caudal direction can be expected during percutaneous SCS trials and this can be anticipated by siting leads half of a vertebral level higher to accommodate for this.
Study context
- Population
- Patients undergoing percutaneous spinal cord stimulator (SCS) trials, tertiary referral center, UK, April 2021–January 2022162 leads
- Participants
- 100 patients
- Outcome
- Incidence and extent of radiographic lead migration (significant: ≥50% of a vertebral level)
- Follow-up
- Prior to lead removal
Methodological detailssingle-centre, tertiary referral center
- Single-centre
- Tertiary referral center
Main finding
As reported in the abstract
Radiographic lead migration
- Mean migration distance, caudal direction (vertebral levels; SD 0.85)
- 0.55
- Mean migration distance, caudal direction (mm; SD 18.2)
- 12.5
- Significant migration, all leads (81 of 162 leads)
- 50%
- Significant migration of at least one lead, cases
- 62%
- Significant migration of all leads, cases
- 44%
Observational data: associations, not effects.
Further findings
Trial success
- Radiographic lead migration not associated with reduced trial success
Risk factors for lead migration
- Single lead and mechanical anchors associated with greater incidence of lead migration
Original publication
Radiographic lead migration in percutaneous spinal cord stimulator trials. Reg Anesth Pain Med. Published 21 July 2023. doi:10.
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