Abstract：Objective To analyze the anesthetic effects of ultrasound guided lower extremity nerve block in ankle surgery.Methods A total of 94 ankle patients undergoing ankle surgeries in our hospital from October 2016 to October 2017 were divided into research group(n=47)and reference group(n=47)according to a double-blind method.Patients in the reference group were provided with lumbar anesthesia,while in the research group,ultrasound guided lower extremity nerve block was adopted.The motor score,sensory score,anesthetic effect and occurrence of complications were comparatively analyzed.Results There was no significant difference in motor score or sensory score in different grading between the two groups(P＞0.05).In the research group,the onset time of postoperative sensory block,the onset time of motor block,the maintenance of motor block,the duration of postoperative analgesia were longer than those in the reference group,while the the time for getting out of bed was shorter than that in the reference group,the differences were statistically significant(P＜0.05).The total incidence of complications in the research group was 6.38%,which was lower than that in the reference group accounting for 21.27%,the difference was statistically significant(P＜0.05).Conclusion Compared to lumbar anesthesia,ultrasound-guided lower extremity nerve block has a better anesthetic effect on patients with ankle surgery by effectively shortening the onset time of the drug and the time to get out of bed,prolonging the duration of drug maintenance and analgesia,and reducing the occurrence of complications,which has a higher value of clinical application.
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