Abstract: Objective To explore the role of motivational interviewing (MI) in preventing lower limb vein thrombosis after total hip arthroplasty. Methods Selected 50 patients with total hip arthroplasty in our hospital from March 2022 to June 2022,and randomly divided into the control group(23 cases) and intervention group(27 caes).Routine thromboprophylaxis in the control group were performed.On the basis of this,in the intervention group,Four times of motivational interviewing were carried out before surgery,at 3 days after surgery,at 2 weeks after surgery,and at 4 weeks after surgery.The incidence of lower limb intravenous embolism of the two groups,nursing satisfaction and quality of life were evaluated. Result No lower limb deep venous thrombosis (DVT) was observed in both two groups,but the cumulative incidence rate of lower limb intramuscular venous thrombosis (MCVT) at 2nd and 4th week of the intervention group was significantly lower than that of the control group (P<0.05 ).There was no significant difference in the scores of the two groups of satisfaction;the quality of life scores of psychological,social,physiological,environment,independence,and beliefs at 4 weeks after surgery in intervention group are higher than that of the control group (P<0.05).Groups were significantly improved compared to preoperative  Harris scores (P<0.05), and the postoperative Harris scores of the intervention group were higher than those of the control group (P<0.05). Conclusion Motivational interviewing can effectively prevent the incidence of lower limb vein thrombosis after total hip arthroplasty,promote postoperative function rehabilitation,and improve the patients’ quality of life.

Key words: motivational interviewing, total hip arthroplasty, intramuscular vein thrombosis