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Published on: January 24, 2018
Validation of a new method for evaluation of syndesmotic injuries of the ankle
Annette B Ahrberg1, Robert Hennings2, Nikolaus von Dercks3
1Department of Orthopaedics, Traumatology and Plastic Surgery, University of Leipzig, Liebigstr. 20, 04103, Leipzig, Germany. annette.ahrberg@medizin.uni-leipzig.de.
Purpose:
To define a new parameter in CT that could make imaging of the contralateral ankle dispensable evaluating the position of the fibula after syndesmotic injury.
Methods:
Thirty bilateral CTs of 30 patients were included. Five parameters were defined in axial CT for the injured (_inju) and uninjured (_unin) ankle. Reproducibility was examined for inter-observer and intra-observer reliability. Comparisons for all parameters were performed between the CT scans of both ankles.
Results:
All measurements had a high agreement for the inter-observer and intra-observer correlation coefficients. A large interindividual variance could be found between all parameters. If the difference of the anterior tibiofibular distance antTFD_unin and antTFD_inju was less than 2 mm, there was a strong significant pairwise correlation between all parameters between both sides.
Conclusion:
Bilateral CT is still to be recommended, as it is the only way to exactly assess anterior posterior reduction of the fibula.
