Presentation
Ankle sprain one month ago.
Patient Data
Upon examination, the anterior talofibular ligament appears thicker than normal and has disrupted fibers. Additionally, there is a cortical defect in its fibular attachment, accompanied by a linear band of high signal intensity.
The calcaneofibular ligament appears to be thickened and shows high signal intensity, but its fibers are not disrupted.
The posterior tibialis tendon has fluid signal intensity around it but no abnormal internal signal; appearances suggest tenosynovitis.
Talocrural and talocalcaneal joint effusions are noted.
Case Discussion
The findings of disrupted fibers, a cortical defect in its fibular attachment, and a linear band of high signal intensity (bright rim sign) indicate a grade 3 full-thickness tear.
According to the results, there is evidence of thickening in the calcaneofibular ligament and high signal intensity, which suggests a grade 2 injury without any fiber disruption.
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