Abstract #1543

T2-mapping evaluation of talar cartilage for chronic lateral ankle instability (LAI) with isolated anterior talofibular ligament (ATFL) tear, and combined ATFL and calcaneofibular ligament (CFL) tear

Hongyue Tao¹, Yang Qiao¹, Yiwen Hu¹, Xu Yan², Kui Ma³, Yinghui Hua³, and Shuang Chen¹

¹Department of Radiology, Fudan University Affiliated Huashan Hospital, Shanghai, People's Republic of China, ²MR Collaboration NE Asia, Siemens Healthcare, Shanghai, People's Republic of China, ³Department of Sports Medicine, Fudan University Affiliated Huashan Hospital, Shanghai, People's Republic of China

The study aimed to use T2-mapping to quantitatively evaluate talus cartilage for chronic lateral ankle instability (LAI) with isolated anterior talofibular ligament (ATFL) tear, and combined ATFL and calcaneofibular ligament (CFL) tear. Seventeen patients with ATFL tear, 10 with ATFL+CFL tear, and 21 healthy subjects were recruited. All participants underwent T2-mapping scan, and patients completed American-Orthopedic-Foot-and-Ankle-Society (AOFAS) scoring. The results indicated that chronic LAI with ATFL+ CFL tear may result in much larger and more severe cartilage degeneration than isolated ATFL tear, and medial anterior of talus could be the main cartilage compartment affecting patients’ clinical symptom and prognosis.

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