title: Surgical Revision after Sacroiliac Joint Fixation or Fusion.
abstract: BACKGROUND
  Minimally invasive sacroiliac joint (SIJ) fusion has been shown to be safe and effective for the treatment of SIJ dysfunction. Multiple devices are available to perform SIJ fixation or fusion. Surgical revision rates after these procedures have not been directly compared.
  
  
  METHODS
  We retrospectively identified all patients in our practice who underwent SIJ fixation or fusion between 2003 and 2015. Using both chart review and focused contact with individual patients, we determined the likelihood of surgical revision. Revision rates were compared using Kaplan-Meier survival analysis.
  
  
  RESULTS
  Thirty-eight patients underwent SIJ fixation with screws and 274 patients underwent SIJ fusion using triangular titanium implants. Four-year cumulative revision rates were 30.8% for fixation and 5.7% for fusion.
  
  
  CONCLUSIONS
  In our study, SIJ fixation with screws had a much higher revision rate compared to SIJ fusion with triangular titanium implants designed for bone adherence.
authors.affiliation: Montgomery Spine Center, Montgomery, AL.
authors.forename: Katie
authors.initials: K
authors.lastname: Spain
authors.affiliation: Montgomery Spine Center, Montgomery, AL.
authors.forename: Timothy
authors.initials: T
authors.lastname: Holt
keywords: revision surgery; sacroiliac joint fixation; sacroiliac joint fusion; survival analysis