Pelvic gauze packing combined with an external fixator for the treatment of unstable pelvic fractures with a huge retroperitoneal hematoma: a case report.

Pelvic fractures with retroperitoneal hematoma are frequent injuries, and there are multiple treatment options for patients. In this case, a 35-year-old female patient suffered an unstable pelvic fracture due to a car crash, accompanied by the formation of a huge retroperitoneal hematoma. The vital signs of patient were not stable.