Channel: Article http://www.zwyxyj.net EN-US http://www.zwyxyj.net/EN/current.shtml http://www.zwyxyj.net 5 0.05). At 7 d after surgery, the diastolic peak velocity (DPV), systolic peak velocity (SPV), and resistance index (RI) of the two groups were improved compared to those before surgery, and the improvement in the closed group were greater than those in the traditional group, the differences were statistically significant (P<0.05). At 7 d after surgery, the levels of immunoglobulin A (IgA), immunoglobulin M (IgM), and immunoglobulin G (IgG) of the two groups were decreased compared to those before surgery, but the closed group were higher than those in the traditional group, the differences were statistically significant (P<0.05). During the follow-up period, there were no cases of shedding in the two groups. At 6 months after surgery, the VAS scores and MFS scores in the two groups were improved compared to those before surgery, and the improvement range in the closed group were greater than those in the traditional group, the differences were statistically significant (P<0.05). Conclusion: Closed reduction and percutaneous cannulated nail fixation for the treatment of patients with simple external ankle fractures can optimize the surgical path, improve hemodynamic indicators, reduce immune function damage, help fracture healing, alleviate pain, and restore patient ankle function, and does not increase the incidence of complications.]]>