What are two particular risks associated with pelvic or femur fractures?

Pelvic or femur fractures present particular risks primarily related to the potential for significant internal damage. One of the major concerns with these types of fractures is the risk of shock, which can occur due to significant external and internal bleeding. The pelvis, in particular, can be a site where large blood vessels are compromised, leading to a substantial volume of blood loss. This hemorrhagic shock can quickly become life-threatening if not addressed promptly.

In addition to shock, distal ischemia is another critical risk associated with these fractures. When the vascular structures are compromised, there can be inadequate blood flow to the tissues distal to the site of injury. This can result in complications such as muscle and nerve damage, which, if unrecognized and untreated, can lead to permanent tissue loss or limb dysfunction.

Understanding these risks is crucial in wilderness medicine, as managing a fracture effectively means being vigilant about these severe complications and preparing to intervene appropriately. This involves recognizing the signs of shock and making critical decisions regarding stabilization and evacuation.