Objective: Detail the imaging findings in patients with proximal tibiofibular instability treated with surgical stabilization.
Methods: Retrospective analysis of preoperative imaging in patients with clinically confirmed tibiofibular instability.
Results: Operative fixation of the 16 patients was as follows: 11 using a fiberwire suture construct and 5 using screw fixation. Proximal tibiofibular ligamentous abnormalities were present in 100% of acute (< 6 months) and 85.7% of chronic (>6 months) instability cases who underwent MRI.
Conclusion: MRI is sensitive in the evaluation of tibiofibular ligamentous integrity in proximal tibiofibular instability. Chronic instability should be considered in younger adults with isolated tibiofibular osteoarthritis.
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