title: Vertical shear injuries: is there a relationship between residual displacement and functional outcome?
abstract: BACKGROUND
  Residual vertical displacement is often cited as being related to poor outcome in patients with pelvic injuries. This study attempts to clarify the relationship between residual vertical displacement and functional outcome.
  
  
  METHODS
  From 1982 to 1989, over 500 patients with pelvic ring injuries were treated at two Level I trauma centers. Thirty-three patients with vertical shear (Tile C) fractures and residual displacement (2-52 mm) were evaluated. Outcomes were quantified by using SF-36 Short-Form Health Survey (SF-36) and the Iowa Pelvic Score (IPS).
  
  
  RESULTS
  There was no correlation between IPS or SF-36 scales and residual vertical displacement. The IPS correlated (p<0.05) with seven of eight SF-36 categories, excluding mental health. Patients reporting limp and leg length discrepancy also correlated with the IPS and select SF-36.
  
  
  CONCLUSIONS
  Pelvic injuries showed no correlation between functional outcome and residual vertical displacement suggesting other factors. The degree of residual vertical displacement does not affect functional outcome.
authors.affiliation: University of Iowa College of Medicine, Department of Orthopaedics, Iowa City 52242, USA. james-nepola@uiowa.edu
authors.forename: J V
authors.initials: JV
authors.lastname: Nepola
authors.forename: S W
authors.initials: SW
authors.lastname: Trenhaile
authors.forename: M A
authors.initials: MA
authors.lastname: Miranda
authors.forename: S L
authors.initials: SL
authors.lastname: Butterfield
authors.forename: D C
authors.initials: DC
authors.lastname: Fredericks
authors.forename: B L
authors.initials: BL
authors.lastname: Riemer
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D050723:Fractures, Bone / Q000150:complications* / Q000503:physiopathology* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010384:Pelvic Bones / Q000293:injuries*; D016896:Treatment Outcome