A Excess fat embolism is when one or more droplet-like particles of fat enter your bloodstream and block circulation by a few of your blood vessels. Traction: Surgeons use weights and pulleys, hooked up to a bed, to stretch muscles and tendons all over a fracture. The traction (pulling force) https://www.theorthopaedicandpainpractice.com/what-is-a-long-bone-fracture/