1) Choi WS, Cho JH, Lee DH, et al. Prognostic factors of acute ankle sprain:need for ultrasonography to predict prognosis. J Orthop Sci 2020;25(2):303-9.
2) Hattori S, Nimura A, Koyama M, et al. Dorsiflexion is more feasible than plantar flexion in ultrasound evaluation of the calcaneofibular ligament:a combination study of ultrasound and cadaver. Knee Surg Sports Traumatol Arthrosc 2020;28(1):262-9.
3) Özçakar L, Kara M, Chang KV, et al. EURO-MUSCULUS/USPRM. Basic scanning protocols for ankle and foot. Eur J Phys Rehabil Med 2015;51(5):647-53.
4) Baltes TPA, Arnáiz J, Geertsema L, et al. Diagnostic value of ultrasonography in acute lateral and syndesmotic ligamentous ankle injuries. Eur Radiol 2021;31(4):2610-20.
5) Rigby R, Cottom JM, Rozin R. Isolated calcaneofibular ligament injury:a report of two cases. J Foot Ankle Surg 2015;54(3):487-9.
6) Hunt KJ, Pereira H, Kelley J, et al. The role of calcaneofibular ligament injury in ankle instability:implications for surgical management. Am J Sports Med 2019;47(2):431-7.