title: Spinal cord stimulator--trial lead migration study.
abstract: OBJECTIVE
  Investigate whether percutaneous spinal cord stimulator (SCS) leads migrate significantly during a 3-day trial, and determine whether the skin anchoring method influences lead migration.
  
  
  METHODS
  Twenty patients were prospectively enrolled. Ten leads were anchored with suture and tape and 10 were anchored with tape only. A standardized X-ray protocol of lead position was obtained immediately following lead placement and upon completion of the trial.
  
  
  RESULTS
  Using a standardized method, SCS leads were measured and movement was calculated. The average movement for leads anchored with tape only was 8.72 mm (SD=5.77), inferiorly; while movement for leads anchored with suture and tape was 24.49 mm (SD=11.3), inferiorly. A t-test revealed a significant difference between the groups (t=3.9, P=0.001).
  
  
  CONCLUSIONS
  Percutaneous SCS trial electrodes migrate significantly, inferiorly, during a 3-day trial. Anchoring the trial electrodes to the skin with a suture and tape results in significantly greater inferior migration when compared with anchoring the lead with tape only.
authors.affiliation: Mayo Clinic Florida, Jacksonville, Florida 32224, USA. Osborne.michael@mayo.edu
authors.forename: Michael D
authors.initials: MD
authors.lastname: Osborne
authors.forename: Salim M
authors.initials: SM
authors.lastname: Ghazi
authors.forename: Scott C
authors.initials: SC
authors.lastname: Palmer
authors.forename: Katherine M
authors.initials: KM
authors.lastname: Boone
authors.forename: Christopher D
authors.initials: CD
authors.lastname: Sletten
authors.forename: Eric W
authors.initials: EW
authors.lastname: Nottmeier
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004599:Electric Stimulation Therapy / Q000295:instrumentation* / Q000379:methods; D004567:Electrodes, Implanted; D005260:Female; D005548:Foreign-Body Migration; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011859:Radiography; D013116:Spinal Cord / Q000000981:diagnostic imaging / Q000601:surgery*