Open Access
CC BY 4.0 · VCOT Open 2024; 07(01): e33-e39
DOI: 10.1055/s-0044-1782533
Original Article

The Effect of the Method of Canal Flare Index Calculation on Femoral Classification in Dogs: An Ex Vivo Study

1   Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil.
,
Caroline Ribeiro Andrade
1   Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil.
,
1   Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil.
,
Luís Gustavo Gosuen Gonçalves Dias
1   Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil.
,
1   Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil.
,
1   Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil.
,
1   Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil.
,
Letícia Santos Goes
1   Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil.
› Institutsangaben

Funding This study was financially supported by the São Paulo Research Foundation (FAPESP).
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Abstract

Objectives The aim of this study was to compare canal flare index (CFI) values obtained by different intracortical widths in the lesser trochanter and to evaluate their influence on femoral classification.

Methods Femur radiographic images were analysed by three evaluators that calculated the CFI using three different points in the lesser trochanter: proximal, midpoint, and distal.

Results There was no interobserver influence, but there was a difference in the CFI value and femoral classification according to the calculation method. The proximal region presents higher CFI values and only 4% of ‘Stovepipe’ femurs, while the distal region presents lower CFI values and 46% of ‘Stovepipe’ femurs.

Clinical Significance The variation in level of measurement can significantly alter femoral classification, which must be considered when the CFI is used in the surgical planning of total hip arthroplasty.



Publikationsverlauf

Eingereicht: 11. Mai 2023

Angenommen: 19. Januar 2024

Artikel online veröffentlicht:
04. April 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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