Abstract
Objective: To explore the MRI features of the lateral collateral ligament injuries of the ankle and determine the value MRI in diagnosing the ligament injuries of the ankle. Methods: The study was reviewed and approved by an institutional review board of hospital. Retrospective analysised 10 healthy volunteers and 26 ankle injury cases underwent surgery since January 2013 to September 2016, the MR imaging findings of patients were compared with volunteers' and operative documents, to analysis the MRI feature of the ligament injuries of the ankle. Results: The normal anterior talofibular ligament and posterior talofibular ligament can be manifest in 3-4 layers of MRI, and can be fully displayed in 1 layer. The normal calcaneofibular ligament can be manifest in 3 layers of MRI, but can not be fully displayed in 1 layer. 26 cases of lateral ligament injury (including 1 case of ATFL injury, 1 case of CFL injury, 3 cases of ATFL conjunction with CFL injury, 3 cases of ATFL conjunction with CFL and PTFL injury) manifested the heterogeneous signal of the T(1)-weighted image, the ligament disruption, the increased signal intensity on fat-suppression PD-weighted image , the surrounding soft tissue edema and bone marrow edema. Conclusion: MR imaging is an accurate method for evaluation of the ligament injuries of the ankle, and it is a useful tool for diagnosis and treatment.
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