Presentation
Left ankle twisting injury. Lateral ankle region pain and swelling.
Patient Data
Small effusion in the anterior ankle joint recess. Bony avulsion of the anterior talofibular ligament from the fibula. Mild edema of the anterior talofibular ligament. Normal calcaneofibular ligament and anterior inferior tibiofibular ligament.
The asymptomatic side was examined for comparison which shows normal findings.
Case Discussion
A girl developed lateral ankle pain and swelling after a twisting injury to the left ankle. An initial radiograph was negative for fracture. The ankle was immobilized for one week, and the patient was referred for an ultrasound evaluation of the ankle. The ultrasound shows fibular bony avulsion of the anterior talofibular ligament with small effusion in the anterior ankle joint recess.