Reliability of coronal plane rotation measurements in the medial column of the foot: a cadaveric study

Authors

  • Kevin Dibbern University of Iowa, Carver College of Medicine, Department of Orthopedics and Rehabilitation, Iowa City, IA, USA https://orcid.org/0000-0002-8061-4453
  • Hunter Briggs University of Iowa, Carver College of Medicine, Department of Orthopedics and Rehabilitation, Iowa City, IA, USA https://orcid.org/0000-0001-6917-1519
  • Andrew Behrens University of Iowa, Carver College of Medicine, Department of Orthopedics and Rehabilitation, Iowa City, IA, USA https://orcid.org/0000-0002-4588-9291
  • Lily McGettigan University of Iowa, Carver College of Medicine, Department of Orthopedics and Rehabilitation, Iowa City, IA, USA
  • Kepler Alencar Mendes de Carvalho University of Iowa, Carver College of Medicine, Department of Orthopedics and Rehabilitation, Iowa City, IA, USA https://orcid.org/0000-0003-1082-6490
  • Nacime Salomao Barbachan Mansur University of Iowa, Carver College of Medicine, Department of Orthopedics and Rehabilitation, Iowa City, IA, USA https://orcid.org/0000-0003-1067-727X
  • Matthieu Lalevée University of Iowa, Carver College of Medicine, Department of Orthopedics and Rehabilitation, Iowa City, IA, USA https://orcid.org/0000-0001-5058-8867
  • César de César Netto University of Iowa, Carver College of Medicine, Department of Orthopedics and Rehabilitation, Iowa City, IA, USA https://orcid.org/0000-0001-6037-0685

DOI:

https://doi.org/10.30795/jfootankle.2021.v15.1598

Keywords:

Cadaver, Hallux valgus, Metatarsal bones, Pronation, Weight-bearing

Abstract

Objective: To assess interobserver reliability of previously described coronal plane rotation measurements of medial column bones and to assess their ability to accurately quantify changes in rotational profile. Methods: Two cadaveric below-knee specimens were implanted with pins in each bone of the medial column. Weight-bearing computed tomography (CT) scans were acquired in a simulated standing position under neutral, supinated, and pronated conditions. For each specimen and condition, 2 observers measured the coronal plane rotation of the navicular, medial cuneiform, first metatarsal base, shaft, and head, and proximal phalanx of the hallux as previously described. The rotation of each pin was measured relative to the ground in the coronal plane for each condition. These measurements were defined as benchmarks for the rotational profile of each bone. The correlation between these benchmarks and direct bone measurements was then assessed. Intraclass correlation coeficiente was used to assess interobserver reliability. Pearson’s coefficient was used to evaluate correlations. Results: The interobserver reliability of direct bone measurements ranged from 0.98 to 0.99. Correlations between pin rotation and direct measurements ranged from ρ=0.87 to 0.99 across the neutral, supinated, and pronated conditions. Conclusion: Coronal plane rotation measurements of medial column bones described in this study are reliable tools. Level of Evidence III; Case-Control Study.

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Published

2021-12-20

How to Cite

Dibbern, K., Briggs, H., Behrens, A., McGettigan, L. ., Alencar Mendes de Carvalho, K. ., Barbachan Mansur, N. S. ., Lalevée, M., & de César Netto , C. . (2021). Reliability of coronal plane rotation measurements in the medial column of the foot: a cadaveric study. Journal of the Foot & Ankle, 15(3), 252–258. https://doi.org/10.30795/jfootankle.2021.v15.1598