Objective To investigate the clinical application value of musculoskeletal ultrasound in the diagnosis and prognosis evaluation of acute anterior talofibular ligament(ATFL)injury of ankle joint in airborne troops.Methods A total of 120 patients with suspected acute ATFL injury caused by airborne training in our hospital were enrolled.The ankle joints were examined by musculoskeletal ultrasound and MRI.Taking MRI results as the gold standard,the consistency and diagnostic efficacy of musculoskeletal ultrasound and MRI were analyzed.The difference of ATFL thickness in patients with different injury grades was observed.The correlation between ATFL thickness measured by musculoskeletal ultrasound and the grade of acute ATFL injury was analyzed.All patients were divided into the good prognosis group and the poor prognosis group according to the American Foot and Ankle Association score after treatment.The differences of ATFL thickness measured by musculoskeletal ultrasound and MRI between the two groups before and after treatment were compared.Receiver operating characteristic(ROC)curve was drawn to analyze the value of ATFL measured by musculoskeletal ultrasound and MRI before treatment in evaluating the prognosis of acute ATFL injury.Results Among the 120 patients,114 cases of acute ATFL injury were diagnosed by MRI,including 36 cases of grade Ⅰ,32 cases of grade Ⅱ(12 cases of mild degree,20 cases of severe degree),and 46 cases of grade Ⅲ,the rest 6 cases were soft tissue contusion.There were 112 cases of acute ATFL injury diagnosed by musculoskeletal ultrasound,including 36 cases of grade Ⅰ,30 cases of grade Ⅱ(10 cases of mild degree,20 cases of severe degree),46 cases of grade Ⅲ.The diagnostic sensitivity was 98.25%,the specificity was 83.33%,and the accuracy was 97.50%,which was highly consistent with the diagnostic results of MRI(Kappa=0.756).The thickness of ATFL measured by musculoskeletal ultrasound and MRI in patients with grade Ⅰ injury was lower than that of grade Ⅱ and grade Ⅲ injury,the thickness of ATFL measured by musculoskeletal ultrasound and MRI in patients with grade Ⅱ injury was lower than that of grade Ⅲ injury,the differences were statistically significant(all P<0.05).There were no significant difference in the thickness of ATFL measured by musculoskeletal ultrasound and MRI in patients with different grades of injury.Correlation analysis showed that the thickness of ATFL measured by musculoskeletal ultrasound was positively correlated with the grade of acute ATFL injury(r=0.374,P<0.001).There were 92 cases in good prognosis group and 22 cases in poor prognosis group in this study.Before treatment,there was no significant difference in the thickness of ATFL measured by musculoskeletal ultrasound and MRI between two groups.After treatment,the ATFL thickness measured by the two methods in the good prognosis group was lower than that in the poor prognosis group,and the differences were statistically significant(all P<0.05).ROC curve analysis showed that the area under the curve of ATFL thickness measured by musculoskeletal ultrasound and MRI before treatment in evaluating the prognosis of acute ATFL injury were 0.675 and 0.739,respectively,with no significant difference.Conclusion Musculoskeletal ultrasound can accurately diagnose acute ATFL injury of ankle joint in airborne troops,which has a certain clinical application value in evaluating the prognosis of ATFL injury.
NETL
NSTL
万方数据
