What are some the major complications of a broken femur?

Busted Bone Blues: Among the serious complications are fat embolism (where droplets of oil float in the blood and travel to cause problems in other vessels), DVT and pulmonary embolism (leg blood clots traveling to the lung), hemorrhage due to arterial injury, nerve injury, shortening or rotation of the extremity if not positioned correctly to heal, and chronic pain associated with non-union, even after surgery.

Broken femur: Infection, bleeding, injury to surrounding structures, and death are some of them.