Objective: To observe the effect of Dunhuang Analgesia Ointment (DAO) on functional recovery of dysfunction of knee joint caused by lower extremity fracture. Method: Eighty patients with dysfunction of knee joint caused by lower extremity fracture were randomly divided into the observation group and the control group

40 cases in each. Two groups of patients were given surgical operation treatment

and from the second day after operation rehabilitation exercise was gradually given. The patients in observation group were additionally given DAO after the lower limb fracture fixation

affixed to the affected area

replacing 1time daily. The treatment in the two groups lasted for 2 months. The therapeutic effects were observed after 1 courses of treatment. Result: The cure rate was 75% in the observation group

62.50% in the control group (P<0.05). The total efficiency was 95% in the observation group

85% in the control group (P<0.05). Knee function scores after treatment in two groups were both significantly improved (P<0.05) two groups had significant differance(P<0.05). Conclusion: Early rehabilitation exercise and DAO application contribute to the functional recovery of dysfunction of knee joint caused by lower extremity fracture.