Abstract: 〗［Abstract］ Objective To evaluate the application effect of dynamic external fixation in elbow fractures.
Methods Sixty patients with hyperelbow fracture were randomly divided into control group and experimental group with 30 cases in each group. Internal fixation plate screw wire and external fixator were used in the experimental group and the control group was fixed with internal fixation steel plate screw wire and external fixator. Visual Analogue Scale（VAS） score, operation duration time, fracture healing time, bone nonunion in 1 month after operation were compared. Mayo elbow function scores were followed-up at 1, 3, 6 and 12 months and scores were compared between two groups.
Results VAS score and fracture healing time of the experimental group were significantly shorter than those of the control group(P＜0.05), and there were no statistically significant differences in operation duration time and bone nonhealing rate between two groups(P＞0.05).The elbow function scores of the two groups showed a gradually increasing trend after surgery, but there was a large increase in the experimental group. The Mayo elbow function score of the two groups showed statistically significant differences in the interaction of groups, time points and between groups and time points(P＜0.05).There was no significant difference in the incidence of surgical complications between two groups within 3 months after surgery(P＞0.05).
Conclusion The application effect of external dynamic fixed stent for complex fracture of elbow joint is better, which can significantly improve the function of the elbow, reduce the healing time of the fracture, reduce the VAS score and make Mayo elbow function score higher. It is worthy of clinical promotion and application.

Key words: elbow joint, fracture fixation, prognosis