Unstable pelvic injuries are rarely isolated. Furthermore polytraumatized patients often have pelvic injuries. Unstable pelvic injuries often contribute significantly to total blood loss in these patients.

Mortality rate in patients with unstable pelvic ring injuries is significant. Death may be due to other injuries. Immediate appropriate emergency evaluation treatment according to ATLS is essential to save life.

The Advanced Trauma Life Support Program (ATLS) was developed and promulgated world-wide by the American College of Surgeons Committee on Trauma, beginning in 1980. It is based on identifying and treating threats to life in order of urgency, and recognizes that neither a detailed history nor a definitive diagnosis are required before life-saving treatment. ATLS teaches that each injured patient should receive the same orderly sequence of evaluations and interventions, according to the mnemonic A-B-C-D-E:
A = Airway, with cervical spine protection
B = Breathing
C = Circulation & bleeding control
D = Disability (Neurologic) status
E = Exposure (undressing) and Environment

These are the elements of the ATLS Primary Survey. They need periodic reassessment, in the same order, and should immediately be rechecked if an injured patient’s condition deteriorates.

Once the primary survey is completed, resuscitation is underway, and the patient’s vital signs are returning towards normal, a systematic, head-to-toe secondary survey can begin. With a large enough team, this might be started by other personnel before the primary survey is completed. In either case, the secondary survey should not delay or interfere with the primary.

(This  approach is briefly summarized here as a reminder, and not as a substitute for attendance at a formal ATLS course, which is strongly recommended for all who care for injured patients.)