Introduction A complex challenge to trauma surgeon is the choice of clinical pathway management in hemodynamic unstable patients with pelvic ring disruption and potential intraperitoneal or other extrapelvic hemorrhage.

Aim of the study In multi-trauma bleeding patients with pelvic ring injuries causing increased pelvic volume, the main source of hemorrhage is the fracture itself; in biomechanical stable the priority is to search and to treat extrapelvic sources of hemorrhage; CESCT is critical in the selection of appriopriate therapeutic approach in the case of bleeding pelvic injury.

Material and Methods Patients admitted as major trauma are immediately evaluated by a multidisciplinary team in a dedicated room where ABC resuscitation, plain radiographs, abdominal ultrasound/DPL may be all performed. The comprehensive Tile pelvic disruption classification combines the mechanism of injury and the degree of pelvic stability. Previous works correlated pelvic fracture pattern with the risk of pelvic fracture hemorrhage. Classically, APC and VS mechanisms were associated with pelvic hemorrhage and LC mechanims with abdominal organ injuries. In this work we included in group A patterns of pelvic fracture where increased pelvic volume and major ligamentous disruption (Tile B1, B3 and C or APC and VS), Patterns of pelvic fractures with low risk of bleeding, such as those without ligament lacerations (Tile A) or with reduced pelvic volume (Tile B2 or LC) or isolated acetabular fractures, have been included in group B.

Results Between October 2002 and January 2004, significant bleeding was observed in 87 of 142 pelvic fractures (61.26%).

Thirty-seven of 87 (42.5%) had a pelvic fracture pattern attributable to group A and 50 to group B

All patients included had multiple sites of bleeding, but predominant hemorrhage from pelvic fracture was observed in 87% of group A patients and in only 6% of group B, while predominant hemorrhage from extra-pelvic sites was identified in 94% of group B and in only 13% of group A (p< .001).

Conclusion Pattern of pelvic seems to be suggestive of the predominant site of bleeding; early application of measures of temporary pelvic stabilization should be considered a completion of resuscitation protocol; CESCT is the best diagnostic tool to choice the appropriate way to manage bleeding pelvic injuries and associated intraperitoneal injuries; availability of equipped CT scan and angiographic suitesand of short response time interventional radiologist is a crucial point for this diagnostic and therapeutic work-up.