title: Late displacement of a fracture dislocation at the lumbosacral junction. A case study.
abstract: METHODS
  This is a retrospective single-patient case report with a literature review.
  
  
  OBJECTIVE
  To report on an uncommon injury: traumatic fracture-dislocation of the lumbosacral junction with delayed displacement.
  
  
  BACKGROUND
  Only 31 cases of traumatic fracture-dislocation of the lumbosacral junction were found in the English literature. Only three previous reports refer to this injury occurring with a posterior displacement. This is the first report of this type of injury displacing in a delayed manner.
  
  
  METHODS
  Chart review.
  
  
  RESULTS
  Open reduction, Arbeitsgemeinschaft fur Osteosynthesefargen instrumentation, and interbody fusion resulted in a satisfactory clinical result with no neurologic impairment.
  
  
  CONCLUSIONS
  The present study reports a very rare injury consisting of traumatic dislocation of the lumbosacral joint, presenting with displacement 2 months after injury. The patient was treated successfully with surgery even though the injury displaced in a delayed fashion.
authors.affiliation: Department of Orthopedic Surgery, Dalhousie University, Halifax, Nova Scotia, Canada.
authors.forename: D K
authors.initials: DK
authors.lastname: Steinitz
authors.forename: D I
authors.initials: DI
authors.lastname: Alexander
authors.forename: R K
authors.initials: RK
authors.lastname: Leighton
authors.forename: J J
authors.initials: JJ
authors.lastname: O'Sullivan
mesh_terms: D000328:Adult; D019412:Anatomy, Cross-Sectional; D001863:Bone Screws; D005260:Female; D005593:Fracture Fixation, Internal / Q000379:methods; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000175:diagnosis* / Q000601:surgery; D004204:Joint Dislocations / Q000175:diagnosis* / Q000601:surgery; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000293:injuries; D008161:Lumbosacral Region / Q000000981:diagnostic imaging / Q000293:injuries*; D009104:Multiple Trauma / Q000175:diagnosis*; D011877:Radionuclide Imaging; D012447:Sacrum / Q000000981:diagnostic imaging / Q000293:injuries; D016103:Spinal Fractures / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed