title: Unstable pelvic ring injury with hemodynamic instability: what seems the best procedure choice and sequence in the initial management?
abstract: BACKGROUND
  Most fatalities related to pelvic ring injuries occur early and are caused by massive retroperitoneal bleeding. The objective of our study is to determine the optimal sequence of surgical procedures to restore hemodynamic stability in patients with unstable pelvic ring injuries.
  
  
  METHODS
  This was a retrospective review of all patients with pelvic fractures and hemodynamic instability admitted to our level 1 trauma center between January 1998 and December 2008. We entered into our polytrauma database the following patient characteristics: age, sex, mechanism of injury, Injury Severity Score (ISS), classification of injury, timing of operative intervention, and type of operative procedures. Patients were divided into four groups (according to the sequence of surgical procedures performed within 24 hours following admission), as follows: group 1: patients treated with external fixation only; group 2: patients receiving external fixation followed by angiography; group 3: patients receiving external fixation followed by laparotomy ± angiography; and group 4: patients treated by immediate laparotomy or angiography before skeletal fixation.
  
  
  RESULTS
  Eighty of 136 patients admitted with a pelvic fracture were classified, as unstable AO/OTA type B or C pelvic ring injury, and 70/80 were hemodynamically unstable. Eight patients died shortly after arrival and two remained stable without requiring any early procedure. Sixty patients went immediately to the operating room. Twenty-nine patients were placed in group 1 with 100% survival, 12 in group 2 with 91% survival, 11 in group 3 with 82% survival, and eight patients placed in group 4 with 0% survival (P<0.001).
  
  
  CONCLUSIONS
  The management of hemorrhagic instability linked to pelvic ring disruption involves a sequence of therapeutic events, which is more important than the events themselves. Pelvic bone stabilization by pelvic clamp or external fixator followed by arteriography seems to be the more secure. Angiographic embolization is the method of choice whenever haemodynamic instability coexists with an unstable pelvic disruption. Laparotomy and packing are restricted to extreme severe cases in remote hospitals with skillful surgeons! Actually aortic balloon is a good solution to control uncontrollable bleeding.
  
  
  METHODS
  Level IV. Retrospective study.
authors: Division of Orthopaedics and Trauma Surgery, University Hospitals of Geneva, 4, rue Gabrielle-Perret-Gentil, 1211 Geneva 14, Switzerland. Sophie.abrassart@hcuge.ch
authors: S
authors: S
authors: Abrassart
authors: R
authors: R
authors: Stern
authors: R
authors: R
authors: Peter
mesh_terms: D000328:Adult; D000368:Aged; D016267:External Fixators; D005260:Female; D005592:Fracture Fixation / Q000379:methods*; D050723:Fractures, Bone / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D006439:Hemodynamics; D006488:Hemostasis, Surgical; D006801:Humans; D007593:Joint Instability / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D007813:Laparotomy; D008297:Male; D008875:Middle Aged; D010384:Pelvic Bones / Q000000981:diagnostic imaging / Q000293:injuries*; D015641:Radiography, Interventional; D012189:Retrospective Studies; D055815:Young Adult