picked purpose: through the analysis of the influence factors of fat liquefaction of incision after orthopaedic surgery to explore the measures of prevention and treatment of fat liquefaction of incision methods: analysis of 30 cases after the operation, the patients of fat liquefaction of incision and the effect of the treatment results: all patients after treatment of incision healing around 20 d, 10 d, the shortest time the longest 26 d, an average of 19 d, all patients without infection occurs。