title: Iliac artery injuries and pelvic fractures: a national trauma database analysis of associated injuries and outcomes.
abstract: BACKGROUND
  Although infrequent, injury to the common or external iliac artery in association with pelvic fractures can be devastating, and descriptive data are lacking. This study was performed to determine the incidence, injury patterns, and outcomes of blunt iliac artery injuries (BIAIs) in association with moderate or severe pelvic fractures.
  
  
  METHODS
  Patients with moderate or severe pelvic fractures (abbreviated injury score of 3 or 4) were identified from the National Trauma Databank. Records with and without common or external BIAI were compared. Admission variables included Emergency Department (ED) hypotension (systolic blood pressure <90), Glasgow Coma Score <or=8, Injury Severity Score (ISS) >or=25, femur or lumbosacral fractures, solid organ injury, vascular injury, and hollow viscus injury. The association of BIAI with moderate or severe pelvic fractures was studied. Outcomes were also analyzed, and independent associations with BIAI were determined by logistic regression.
  
  
  RESULTS
  Of 6,377 patients with moderate or severe pelvic fractures, 221 (3.5%) had an associated BIAI. Patients with BIAI were more likely to have ED hypotension, Glasgow Coma Score <or=8, ISS >or=25, genitourinary injury, bowel injury, and severe (abbreviated injury score 4) pelvic fractures. BIAI was also associated with higher mortality, lower extremity amputation, compartment syndrome, and overall complications. Independent risk factors for BIAI included severe pelvic fracture, ED hypotension, ISS >or=25, genitourinary injury, and bowel injury.
  
  
  CONCLUSIONS
  BIAI is a rare diagnosis, but when present it is associated with a higher rate of overall complications and mortality. Vigilance is warranted in the diagnosis and management of this infrequent injury, especially in the setting of severe pelvic fractures.
authors.affiliation: Division of Trauma/Surgical Critical Care, Department of Surgery, LAC + USC Medical Center, Los Angeles, California 90033, USA. rfcestero@gmail.com
authors.forename: Ramon F
authors.initials: RF
authors.lastname: Cestero
authors.forename: David
authors.initials: D
authors.lastname: Plurad
authors.forename: Donald
authors.initials: D
authors.lastname: Green
authors.forename: Kenji
authors.initials: K
authors.lastname: Inaba
authors.forename: Brad
authors.initials: B
authors.lastname: Putty
authors.forename: Rodd
authors.initials: R
authors.lastname: Benfield
authors.forename: Lydia
authors.initials: L
authors.lastname: Lam
authors.forename: Peep
authors.initials: P
authors.lastname: Talving
authors.forename: Demetrios
authors.initials: D
authors.lastname: Demetriades
mesh_terms: D000063:Accidents, Traffic / Q000706:statistics & numerical data; D005260:Female; D050723:Fractures, Bone / Q000453:epidemiology*; D006801:Humans; D007083:Iliac Artery / Q000293:injuries*; D015994:Incidence; D008297:Male; D009049:Motorcycles / Q000706:statistics & numerical data; D009104:Multiple Trauma / Q000453:epidemiology* / Q000401:mortality; D010384:Pelvic Bones / Q000293:injuries*; D012042:Registries; D014481:United States / Q000453:epidemiology; D014754:Violence / Q000706:statistics & numerical data