Study on the Diagnostic Value of MRI Examination for Periarticular Ligament and Tendon Injuries in Different Positions of the Ankle Joint
Objective To analyze the diagnostic value of magnetic resonance imaging(MRI)examination for periarticular ligament and tendon injuries in different positions of the ankle joint.Methods Seventy-six patients with ankle sprains/fractures treated at the Second Affiliated Hospital of Henan University of Science and Technology from January 2021 to July 2023 were selected as the subjects of this study.All patients underwent MRI examination in different positions(natural position,full dorsiflexion,full plantar flexion).The MRI T2 values of the medial and lateral aspects of the ankle joint in different positions were compared.Additionally,MRI results were compared with surgical findings to analyze the diagnostic results and the detection rate of positive signs.Results There was no significant difference in MRI T2 values of the weight-bearing and non-weight-bearing areas of the medial and lateral aspects of the ankle joint in the natural position,full dorsiflexion,and full plantar flexion(P＞0.05).Surgical findings revealed 70 positive cases and 6 negative cases.The diagnostic accuracy,sensitivity,and specificity of MRI in the natural position were 94.74%,95.71%,and 83.33%,respectively;in full dorsiflexion,they were 90.79%,92.86%,and 66.67%,respectively;and in full plantar flexion,they were 90.79%,91.43%,and 83.33%,respectively.There was no statistically significant difference in the diagnostic efficiency of MRI in the three positions(P＞0.05).Conclusion MRI can accurately evaluate the stability of the ankle joint in patients with ankle sprains/fractures.MRI in three positions(natural position,full dorsiflexion,full plantar flexion)can sensitively reflect periarticular ligament and tendon injuries,and combining these three positions can achieve the most accurate imaging diagnosis.
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