"AMA classification 8,9:"
Expected headings
"Grading"
"Plain radiograph/CT"
"Signal characteristics"
"Anterior talofibular ligament injuries typically occur with an inversion injury to the ankle, either with or without plantar flexion. Approximately two-thirds of ankle sprains tend to be isolated injuries to the anterior talofibular ligament (ATFL), the weakest ligament in the lateral collateral complex of the ankle. There is general agreement that avulsion is more common at the fibular than at the talar end of the ligament 2."
"There are other grading systems, of course, such as the anatomic classification or grading by clinical presentation symptoms 9."