Anterior talofibular ligament footprint dimension measured using three-dimensional magnetic resonance imaging

Knowledge of footprint anatomy is essential for ankle anterior talofibular ligament repair and reconstruction. We aimed to determine the intra- and inter-rater measurement reliability of the anterior talofibular ligament footprint dimension using three-dimensional MRI. MRI images of 20 ankles with i...

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Published in:Skeletal radiology 2024-09
Main Authors: Kono, Kenta, Yamaguchi, Satoshi, Kimura, Seiji, Mikami, Yukio, Kitsukawa, Kaoru, Matsumoto, Koji, Edama, Mutsuaki, Shiko, Yuki, Horii, Manato, Sasho, Takahisa, Ohtori, Seiji
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creator Kono, Kenta
Yamaguchi, Satoshi
Kimura, Seiji
Mikami, Yukio
Kitsukawa, Kaoru
Matsumoto, Koji
Edama, Mutsuaki
Shiko, Yuki
Horii, Manato
Sasho, Takahisa
Ohtori, Seiji
description Knowledge of footprint anatomy is essential for ankle anterior talofibular ligament repair and reconstruction. We aimed to determine the intra- and inter-rater measurement reliability of the anterior talofibular ligament footprint dimension using three-dimensional MRI. MRI images of 20 ankles with intact ligaments, including 11 with a single bundle and nine with double-bundle ligaments, were analyzed. Imaging was performed using a 3.0-Tesla MRI. Isotropic three-dimensional proton density-weighted images with a voxel size of 0.6 mm were obtained. The fibular and talar footprints were manually segmented using image processing software to create three-dimensional ligament footprints. The lengths, widths, and areas of each sample were measured. A certified orthopedic surgeon and a senior orthopedic fellow performed the measurements twice at 6-week intervals. The intra- and inter-rater differences in the measurements were calculated. The length, width, and area of the single-bundle fibular footprint were 8.7 mm, 5.4 mm, and 37.4 mm , respectively. Those of the talar footprint were 8.4 mm, 4.3 mm, and 30.1 mm , respectively. The inferior bundle of the double-bundle ligament was significantly smaller than the single and superior bundles (p 
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title Anterior talofibular ligament footprint dimension measured using three-dimensional magnetic resonance imaging
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