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PLACE OF PELVIC EXTERNAL FIXATOR IN UNSTABLE PELVIC FRACTURESS



Abstract

Introduction: Early mortality associated with unstable pelvic ring injuries is often secondary to continuous pelvic bleeding. Hemostatic measures such as pelvic binders or external fixation may help to control low pressure bleeding from lacerated veins or broad fracture surfaces, while control of high pressure arterial bleeding may require embolization.

Purpose: Evaluate our experience with the control of hemorrhagic shock associated with pelvic ring injuries during initial patient management.

Methods: From January 2003 until December 2006, all [105] patients admitted to our level I trauma center with a pelvic or an acetabular fracture were prospectively entered into our polytrauma data base. Of 105 patients, 67 were classified with a type B or C pelvic fracture. All these patients received a pelvic strap belt by the paramedic team at the scene of the accident. Pelvic fractures were diagnosed on the initial anteroposterior pelvic radiograph and computed tomography. From this initial group of 67 patients, we identified 38 as unstable requiring blood transfusion and intensive care monitoring. The results and survival rate were evaluated according to the initial sequence of surgical procedures and the patients were divided into 3 groups, X,Y, and Z Follow-up physical examination and radiographs was performed for all survivors at an average of 10 months post-injury (range, 6 months to 3 years).

Results: The average age of the 38 patients was 38.6 years (range, 24–51 years) and their average ISS was 53 (range 21–75).All were injured in a high velocity motor vehicle accident or a fall from a height. The patients were managed in the emergency department by a multidisciplinary team according A.T.L.S. guidelines. Of the 38 patients, five died shortly after arrival in the emergency department despite resuscitation efforts. Within the first 24 hours, pelvic stabilization was performed in 27 patients with either an anterior external fixator frame (n=13), pelvic clamp (n=11) or primary open reduction internal fixation (n=3). In group X, of 19 patients initially treated with external fixation and eventual arterial embolization without laparotomy, 18 (94 %) survived. In group Y, there were 8 patients treated by external fixation, eventual arterial embolization and laparotomy, and 7 (87 %) survived. In group Z, all 6 patients in whom a scratch laparotomy with packing prior to any skeletal fixation was attempted,no patient survived ! All survivors underwent definitive open reduction and plate and screw fixation, with an average ICU stay of 10 days (3–15).

Conclusion: This study shows that optimal control of bleeding associated with pelvic ring injuries is achieved by initial skeletal fixation prior to any other surgical procedures. Immediate laparotomy was associated with a high rate of intraoperative death due to the failure to control bleeding.

Correspondence should be addressed to: EFORT Central Office, Technoparkstrasse 1, CH – 8005 Zürich, Switzerland. Email: office@efort.org