The pelvis is an integral part of the human skeletal system and contains some of the largest bones in the body. Structurally, it connects the lumbar spine to the lower extremities and carries and supports the abdominal organs. Its right and left sides (coaxe) are formed by the fused bones of the ilium, ischium, and pubis; an outside
Most serious pelvic injuries are caused by high energy events: falls from a height, motor vehicle accidents, and crush injuries. While torn ligaments can bleed profusely, the majority of bleeding associated with pelvic injuries is typically venous bleeding directly from the fracture site. Arterial bleeding is rare and usually leads rapidly to death from volume shock. Blood accumulates in the retroperitoneal space (which is capable of holding up to four liters) and if the pressure is great enough, may also track into the abdomen; concomitant genitourinary and gastrointestinal damage is common. Internal volume and bleeding increase with open-book injuries as the coxae splay backward.
It's worth noting that the force required to cause a serious pelvic injury makes associated traumatic injuries common: over 90% of patient's with pelvic ring injuries also have head or chest injuries. The majority of these multi-trauma patients will die if their injuries occur in a remote setting where Advanced Life Support and rapid transport are unavailable. For those that survive, recovery is a long-term process and fraught with complications.
part 2 of 3: Field Assessment
part 3 of 3: Field Treatment