AetiologyPrimaryfactor1.FractureLong bones cause more emboli due toabundant fat tissue,especially in multiplefractures, like femoral diaphysis.Andclosedfracturesproduce moreembolithanopenfractures
Primary factor 1．Fracture Long bones cause more emboli due to abundant fat tissue, especially in multiple fractures, like femoral diaphysis. And closed fractures produce more emboli than open fractures. Aetiology
Aetiology2.OrthopaedicproceduresMost commonly intramedullary nailing of the longbones,hip orkneereplacements.Theincidenceratevaryfrom6.8%to8%3.OtherfactorsMassive soft tissueinjuryAll kinds of surgerymay induceFES as containingabundantfattissueBurn,Alcoholpoisoning
2．Orthopaedic procedures Most commonly intramedullary nailing of the long bones, hip or knee replacements. The incidence rate vary from 6.8％ to 8％. 3．Other factors Massive soft tissue injury All kinds of surgery may induce FES as containing abundant fat tissue. Burn, Alcohol poisoning Aetiology