Ankle syndesmotic instability assessment using a three-dimensional distance mapping algorithm: a cadaveric pilot WBCT study

Authors

  • Kevin Dibbern Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA.
  • Grayson Talaski Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA. https://orcid.org/0000-0002-0018-6410
  • Eli Schmidt Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA. https://orcid.org/0000-0002-6922-5238
  • Ryan Jasper Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA. https://orcid.org/0000-0003-3448-1300
  • Vineel Mallavarapu Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA. https://orcid.org/0000-0002-8612-5941
  • Matthew Jones Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA. https://orcid.org/0000-0003-0773-7286
  • Hannah Stebral Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA. https://orcid.org/0000-0003-2664-0762
  • Andrew Behrens Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA.
  • Kepler Alencar Mendes de Carvalho Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA. https://orcid.org/0000-0003-1082-6490
  • Ki Chun Kim Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA.
  • Nacime Salomão Barbachan Mansur Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA. https://orcid.org/0000-0003-1067-727X
  • César de César Netto Department of Orthopedics and Rehabilitation, Carver College of Medicine, University of Iowa, IA, USA.

DOI:

https://doi.org/10.30795/jfootankle.2022.v16.1673

Keywords:

Joint instability, Orthopedic procedures, Syndesmosis, Tomography, x-ray computed, Weight-bearing

Abstract

Objective: This cadaveric pilot study was to develop a weight bearing computed tomography (WBCT) three-dimensional (3D) distance mapping algorithm that would allow for detection of syndesmotic instability. Methods: Pilot study, two cadaveric specimens. Syndesmotic instability was induced by release of all syndesmotic ligaments through a conventional lateral ankle approach. WBCT imaging under simulated weight bearing was acquired before and after syndesmotic destabilization. Syndesmotic incisura and ankle gutter distances were assessed using a 3D distance mapping WBCT algorithm. Results: We found increases in the overall mean syndesmotic distances in the injured syndesmosis when compared to pre-injury state, and color coded distance maps allowed easy interpretation of the syndesmotic widening following ligament sectioning and destabilization of the syndesmotic joint. Conclusion: The WBCT 3D distance mapping algorithm has the potential to allow detection of mild syndesmotic instability with a relatively ease of interpretation by using color-coded distance maps. Level of Evidence V; Cadaveric Study.

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Published

2022-12-20

How to Cite

Dibbern, K., Talaski, G., Schmidt, E., Jasper, R., Mallavarapu, V., Jones, M., Stebral, H., Behrens, A., Alencar Mendes de Carvalho, K., Chun Kim, K., Barbachan Mansur, N. S., & de César Netto, C. (2022). Ankle syndesmotic instability assessment using a three-dimensional distance mapping algorithm: a cadaveric pilot WBCT study. Journal of the Foot & Ankle, 16(3), 190–194. https://doi.org/10.30795/jfootankle.2022.v16.1673