Validation of a new method for evaluation of syndesmotic injuries of the ankle

Abstract

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.

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Availability of data and material

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Contributions

All authors contributed to the study conception and design. Data collection and analysis were performed by Annette B. Ahrberg and Ulrich J. Spiegl. The first draft of the manuscript was written by Annette B. Ahrberg, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Annette B. Ahrberg.

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The authors declare that they have no conflict of interest.

Ethics approval

Approval of the local institutional review board for study had been given (Ethical Committee at the Medical Faculty, Leipzig University, AZ 131/18-ek) in view of the retrospective nature of the study, and all the procedures being performed were part of the routine care.

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All individuals have given general consent in the use of their data, including imaging, for analysis and publication. This has been approved by the Ethical Committee.

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All individuals have given general consent in the use of their data, including imaging, for analysis and publication. This has been approved by the Ethical Committee.

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Cite this article

Ahrberg, A.B., Hennings, R., von Dercks, N. et al. Validation of a new method for evaluation of syndesmotic injuries of the ankle. International Orthopaedics (SICOT) 44, 2095–2100 (2020). https://doi.org/10.1007/s00264-020-04631-9

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Keywords

  • Syndesmosis
  • Ankle
  • Screw
  • Suture-button
  • Computed tomography