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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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Abstract